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3.32k
63c648b75f004bf4898cff04
2023-01-26T23:54:00.183Z
General Question
v1
dynamically assign array on size of 5 ints at a given pointer
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null
63c648b75f004bf4898cff04
2023-01-26T23:54:56.650Z
General Question
v1
Fibonacci function in c
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null
63c648b75f004bf4898cff04
2023-01-26T23:55:27.810Z
General Question
v1
how to write Fibonacci function in c
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null
63c648b75f004bf4898cff04
2023-01-27T00:51:13.467Z
Explain Code
v1
null
int *build_array(char **strs, int size) { int *array = malloc(sizeof(int) * size); for (int i = 0; i < size; i++) { array[i] = strtol(strs[i], NULL, 10); } return array; }
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63c648b75f004bf4898cff04
2023-01-27T00:53:03.999Z
Help Fix Code
v1
null
int *build_array(char **strs, int size) { int *array = malloc(sizeof(int) * size); for (int i = 0; i < size; i++) { array[i] = strtol(strs[i], NULL, 10); } return array; }
convert strings in strs to ints in an array and return that array
null
63c648b75f004bf4898cff04
2023-01-27T01:20:41.002Z
Explain Code
v1
null
int **split_array(const int *s, int length) { int num_odds = 0; int num_evens = 0; for (int i = 0; i < length; i++) { if ((i % 2) == 0) { num_evens += 1; } else { num_odds += 1; } } int *final_array = malloc(2 * sizeof(char*)); final_array[0] = malloc(num_evens * sizeof(int)); final_array[1] = malloc(num_odds * sizeof(int)); int even_counter = 0; int odd_counter = 0; for (int i = 0; i < length; i++) { if ((i % 2) == 0) { final_array[0][even_counter] = s[i]; even_counter += 1; } else { final_array[1][odd_counter] = s[i]; odd_counter += 1; } } return final_array; }
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null
63c648b75f004bf4898cff04
2023-01-27T01:50:45.816Z
General Question
v1
how to create 9 element character array?
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null
63c648b75f004bf4898cff04
2023-01-27T01:51:30.336Z
General Question
v1
what is char*?
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null
null
63c648b75f004bf4898cff04
2023-01-27T01:52:09.303Z
General Question
v1
char* as input to a function, then later use it for an array of characters?
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null
null
63c648b75f004bf4898cff04
2023-01-27T01:54:13.118Z
General Question
v1
represent strings of length 9 with char*
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null
63c648b75f004bf4898cff04
2023-01-27T01:57:19.426Z
Explain Code
v1
null
int check_permissions(char *given, char *required){ for (i = 0; i < 9; i++) { if (required[i] != '-' && given[i] == '-') { return 1; } return 0; } }
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null
63c648b75f004bf4898cff04
2023-01-27T02:13:29.672Z
General Question
v1
how to read a file line by line in c
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null
null
63c648b75f004bf4898cff04
2023-01-27T02:38:21.682Z
General Question
v1
scan line using scanf
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null
null
63c648b75f004bf4898cff04
2023-01-27T02:51:48.097Z
General Question
v1
scan the whole input line using scanf
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null
null
63c648b75f004bf4898cff04
2023-01-27T02:58:54.183Z
General Question
v1
initialize a string to hold the scanned line using scanf
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null
null
63c648b75f004bf4898cff04
2023-01-27T03:16:21.199Z
General Question
v1
using scanf to split between whitespace
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null
63c648b75f004bf4898cff04
2023-01-27T05:30:08.300Z
General Question
v1
initialize a 9 character string called permissions
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null
63c648b75f004bf4898cff04
2023-01-27T05:31:44.933Z
General Question
v1
use scanf to take input and save it in a string of length 9 represented by the name permissions
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null
63c648b75f004bf4898cff04
2023-01-27T05:41:03.281Z
General Question
v1
can you answer questions related to linux as well?
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null
63c648b75f004bf4898cff04
2023-01-27T05:47:09.699Z
Question from Code
v1
running this returns in a stack smashing detected and the program terminates, how to fix it?
#include <stdio.h> #include <stdlib.h> // TODO: Implement a helper named check_permissions that matches the prototype below. int check_permissions(char *given, char *required){ for (int i = 0; i < 9; i++) { if (required[i] != '-' && given[i] == '-') { return 1; } } return 0; } int main(int argc, char** argv) { if (!(argc == 2 || argc == 3)) { fprintf(stderr, "USAGE: count_large size [permissions]\n"); return 1; } int req_size = strtol(argv[1], NULL, 10); char permissions[10]; int file_size; int counter = 0; scanf("%*[^\n]"); while (scanf("%s %*i %*s %*s %i %*s %*i %*s %*s", permissions, &file_size) != EOF) { if (permissions[0] != 'd') { if (argc == 3 && file_size >= req_size) { char *required = argv[2]; if (check_permissions(permissions, required) == 0) { counter += 1; } else if (file_size >= req_size) { counter += 1; } } } } printf("%i \n", counter); // TODO: Process command line arguments. // TODO: Call check_permissions as part of your solution to count the files to // compute and print the correct value. return 0;
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63c648b75f004bf4898cff04
2023-01-27T05:48:17.855Z
Question from Code
v1
how can I make `permissions` a pointer and use it to avoid the stack smashing error?
#include <stdio.h> #include <stdlib.h> // TODO: Implement a helper named check_permissions that matches the prototype below. int check_permissions(char *given, char *required){ for (int i = 0; i < 9; i++) { if (required[i] != '-' && given[i] == '-') { return 1; } } return 0; } int main(int argc, char** argv) { if (!(argc == 2 || argc == 3)) { fprintf(stderr, "USAGE: count_large size [permissions]\n"); return 1; } int req_size = strtol(argv[1], NULL, 10); char permissions[10]; int file_size; int counter = 0; scanf("%*[^\n]"); while (scanf("%s %*i %*s %*s %i %*s %*i %*s %*s", permissions, &file_size) != EOF) { if (permissions[0] != 'd') { if (argc == 3 && file_size >= req_size) { char *required = argv[2]; if (check_permissions(permissions, required) == 0) { counter += 1; } else if (file_size >= req_size) { counter += 1; } } } } printf("%i \n", counter); // TODO: Process command line arguments. // TODO: Call check_permissions as part of your solution to count the files to // compute and print the correct value. return 0;
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63c648b75f004bf4898cff04
2023-01-27T05:50:35.564Z
Question from Code
v1
changing char permissions[10] to char *permissions = malloc(10) still results in a stack smashing error
#include <stdio.h> #include <stdlib.h> // TODO: Implement a helper named check_permissions that matches the prototype below. int check_permissions(char *given, char *required){ for (int i = 0; i < 9; i++) { if (required[i] != '-' && given[i] == '-') { return 1; } } return 0; } int main(int argc, char** argv) { if (!(argc == 2 || argc == 3)) { fprintf(stderr, "USAGE: count_large size [permissions]\n"); return 1; } int req_size = strtol(argv[1], NULL, 10); char permissions[10]; int file_size; int counter = 0; scanf("%*[^\n]"); while (scanf("%s %*i %*s %*s %i %*s %*i %*s %*s", permissions, &file_size) != EOF) { if (permissions[0] != 'd') { if (argc == 3 && file_size >= req_size) { char *required = argv[2]; if (check_permissions(permissions, required) == 0) { counter += 1; } else if (file_size >= req_size) { counter += 1; } } } } printf("%i \n", counter); // TODO: Process command line arguments. // TODO: Call check_permissions as part of your solution to count the files to // compute and print the correct value. return 0;
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63c648b75f004bf4898cff04
2023-01-27T05:52:04.608Z
Help Fix Code
v1
null
#include <stdio.h> #include <stdlib.h> // TODO: Implement a helper named check_permissions that matches the prototype below. int check_permissions(char *given, char *required){ for (int i = 0; i < 9; i++) { if (required[i] != '-' && given[i] == '-') { return 1; } } return 0; } int main(int argc, char** argv) { if (!(argc == 2 || argc == 3)) { fprintf(stderr, "USAGE: count_large size [permissions]\n"); return 1; } int req_size = strtol(argv[1], NULL, 10); char *permissions = malloc(10 * sizeof(char)); int file_size; int counter = 0; scanf("%*[^\n]"); while (scanf("%s %*i %*s %*s %i %*s %*i %*s %*s", permissions, &file_size) != EOF) { if (permissions[0] != 'd') { if (argc == 3 && file_size >= req_size) { char *required = argv[2]; if (check_permissions(permissions, required) == 0) { counter += 1; } else if (file_size >= req_size) { counter += 1; } } } } printf("%i \n", counter); // TODO: Process command line arguments. // TODO: Call check_permissions as part of your solution to count the files to // compute and print the correct value. return 0;
running this results in stack smashing error, how to fix?
null
63c648b75f004bf4898cff04
2023-01-27T05:53:59.026Z
Help Fix Code
v1
null
#include <stdio.h> #include <stdlib.h> // TODO: Implement a helper named check_permissions that matches the prototype below. int check_permissions(char *given, char *required){ for (int i = 0; i < 9; i++) { if (required[i] != '-' && given[i] == '-') { return 1; } } return 0; } int main(int argc, char** argv) { if (!(argc == 2 || argc == 3)) { fprintf(stderr, "USAGE: count_large size [permissions]\n"); return 1; } int req_size = strtol(argv[1], NULL, 10); char *permissions = malloc(10 * sizeof(char)); int file_size; int counter = 0; scanf("%*[^\n]"); while (scanf("%s %*i %*s %*s %i %*s %*i %*s %*s", permissions, &file_size) != EOF) { if (permissions[0] != 'd') { if (argc == 3 && file_size >= req_size) { char *required = argv[2]; if (check_permissions(permissions, required) == 0) { counter += 1; } else if (file_size >= req_size) { counter += 1; } } } } printf("%i \n", counter); // TODO: Process command line arguments. // TODO: Call check_permissions as part of your solution to count the files to // compute and print the correct value. free(permissions); return 0; }
running this results in stack smashing error, how to fix?
null
63c648b75f004bf4898cff04
2023-01-27T05:55:47.631Z
Question from Code
v1
running this results in stack smashing error, how to fix?
#include <stdio.h> #include <stdlib.h> // TODO: Implement a helper named check_permissions that matches the prototype below. int check_permissions(char *given, char *required){ for (int i = 0; i < 9; i++) { if (required[i] != '-' && given[i] == '-') { return 1; } } return 0; } int main(int argc, char** argv) { if (!(argc == 2 || argc == 3)) { fprintf(stderr, "USAGE: count_large size [permissions]\n"); return 1; } int req_size = strtol(argv[1], NULL, 10); char *permissions = malloc(10 * sizeof(char)); int file_size; int counter = 0; scanf("%*[^\n]"); while (scanf("%s %*i %*s %*s %i %*s %*i %*s %*s", permissions, &file_size) != EOF) { if (permissions[0] != 'd') { if (argc == 3 && file_size >= req_size) { char *required = argv[2]; if (check_permissions(permissions, required) == 0) { counter += 1; } } else if (file_size >= req_size) { counter += 1; } } } printf("%i \n", counter); // TODO: Process command line arguments. // TODO: Call check_permissions as part of your solution to count the files to // compute and print the correct value. free(permissions); return 0; }
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63c648b75f004bf4898cff04
2023-01-27T05:56:45.373Z
Question from Code
v1
running this results in stack smashing error, how to fix?
#include <stdio.h> #include <stdlib.h> // TODO: Implement a helper named check_permissions that matches the prototype below. int check_permissions(char *given, char *required){ for (int i = 0; i < 9; i++) { if (required[i] != '-' && given[i] == '-') { return 1; } } return 0; } int main(int argc, char** argv) { if (!(argc == 2 || argc == 3)) { fprintf(stderr, "USAGE: count_large size [permissions]\n"); return 1; } int req_size = strtol(argv[1], NULL, 10); char *permissions = malloc(10 * sizeof(char)); int file_size; int counter = 0; scanf("%*[^\n]"); while (scanf("%s %*i %*s %*s %i %*s %*i %*s %*s", permissions, &file_size) != EOF) { if (permissions[0] != 'd') { if (argc == 3 && file_size >= req_size) { char *required = argv[2]; if (check_permissions(permissions, required) == 0) { counter += 1; } } else if (file_size >= req_size) { counter += 1; } } } printf("%i \n", counter); // TODO: Process command line arguments. // TODO: Call check_permissions as part of your solution to count the files to // compute and print the correct value. free(permissions); return 0; }
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63c648b75f004bf4898cff04
2023-01-27T05:57:30.475Z
Question from Code
v1
how should permissions be changed to avoid a stack smashing error
#include <stdio.h> #include <stdlib.h> // TODO: Implement a helper named check_permissions that matches the prototype below. int check_permissions(char *given, char *required){ for (int i = 0; i < 9; i++) { if (required[i] != '-' && given[i] == '-') { return 1; } } return 0; } int main(int argc, char** argv) { if (!(argc == 2 || argc == 3)) { fprintf(stderr, "USAGE: count_large size [permissions]\n"); return 1; } int req_size = strtol(argv[1], NULL, 10); char *permissions = malloc(10 * sizeof(char)); int file_size; int counter = 0; scanf("%*[^\n]"); while (scanf("%s %*i %*s %*s %i %*s %*i %*s %*s", permissions, &file_size) != EOF) { if (permissions[0] != 'd') { if (argc == 3 && file_size >= req_size) { char *required = argv[2]; if (check_permissions(permissions, required) == 0) { counter += 1; } } else if (file_size >= req_size) { counter += 1; } } } printf("%i \n", counter); // TODO: Process command line arguments. // TODO: Call check_permissions as part of your solution to count the files to // compute and print the correct value. free(permissions); return 0; }
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63c648b75f004bf4898cff04
2023-01-27T06:20:27.528Z
Help Fix Code
v1
null
#include <stdio.h> #include <stdlib.h> // TODO: Implement a helper named check_permissions that matches the prototype below. int check_permissions(char *given, char *required){ for (int i = 0; i < 9; i++) { if (required[i] != '-' && given[i] == '-') { return 1; } } return 0; } int main(int argc, char** argv) { if (!(argc == 2 || argc == 3)) { fprintf(stderr, "USAGE: count_large size [permissions]\n"); return 1; } int req_size = strtol(argv[1], NULL, 10); char *permissions = malloc(10 * sizeof(char)); int file_size; int counter = 0; scanf("%*[^\n]"); while (scanf("%s %*i %*s %*s %i %*s %*i %*s %*s", permissions, &file_size) != EOF) { if (permissions[0] != 'd') { if (argc == 3 && file_size >= req_size) { char *required = argv[2]; if (check_permissions(permissions, required) == 0) { counter += 1; } } else if (file_size >= req_size) { counter += 1; } } } printf("%i \n", counter); // TODO: Process command line arguments. // TODO: Call check_permissions as part of your solution to count the files to // compute and print the correct value. free(permissions); return 0; }
encountering a stack smashing error, how to fix the code?
null
63c648b75f004bf4898cff04
2023-01-27T06:21:49.996Z
Question from Code
v1
getting a stack smashing error, how to fix?
#include <stdio.h> #include <stdlib.h> // TODO: Implement a helper named check_permissions that matches the prototype below. int check_permissions(char *given, char *required){ for (int i = 0; i < 9; i++) { if (required[i] != '-' && given[i] == '-') { return 1; } } return 0; } int main(int argc, char** argv) { if (!(argc == 2 || argc == 3)) { fprintf(stderr, "USAGE: count_large size [permissions]\n"); return 1; } int req_size = strtol(argv[1], NULL, 10); char *permissions = malloc(10 * sizeof(char)); int file_size; int counter = 0; scanf("%*[^\n]"); while (scanf("%s %*i %*s %*s %i %*s %*i %*s %*s", permissions, &file_size) != EOF) { if (permissions[0] != 'd') { if (argc == 3 && file_size >= req_size) { char *required = argv[2]; if (check_permissions(permissions, required) == 0) { counter += 1; } } else if (file_size >= req_size) { counter += 1; } } } printf("%i \n", counter); // TODO: Process command line arguments. // TODO: Call check_permissions as part of your solution to count the files to // compute and print the correct value. free(permissions); return 0; }
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63c648b75f004bf4898cff04
2023-01-27T06:22:36.124Z
Question from Code
v1
how to allocate 10 characters for permissions?
#include <stdio.h> #include <stdlib.h> // TODO: Implement a helper named check_permissions that matches the prototype below. int check_permissions(char *given, char *required){ for (int i = 0; i < 9; i++) { if (required[i] != '-' && given[i] == '-') { return 1; } } return 0; } int main(int argc, char** argv) { if (!(argc == 2 || argc == 3)) { fprintf(stderr, "USAGE: count_large size [permissions]\n"); return 1; } int req_size = strtol(argv[1], NULL, 10); char *permissions = malloc(10 * sizeof(char)); int file_size; int counter = 0; scanf("%*[^\n]"); while (scanf("%s %*i %*s %*s %i %*s %*i %*s %*s", permissions, &file_size) != EOF) { if (permissions[0] != 'd') { if (argc == 3 && file_size >= req_size) { char *required = argv[2]; if (check_permissions(permissions, required) == 0) { counter += 1; } } else if (file_size >= req_size) { counter += 1; } } } printf("%i \n", counter); // TODO: Process command line arguments. // TODO: Call check_permissions as part of your solution to count the files to // compute and print the correct value. free(permissions); return 0; }
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63c648b75f004bf4898cff04
2023-01-27T19:14:33.829Z
Explain Code
v1
null
#include <stdio.h> #include <stdlib.h> /* Return a pointer to an array of two dynamically allocated arrays of ints. The first array contains the elements of the input array s that are at even indices. The second array contains the elements of the input array s that are at odd indices. Do not allocate any more memory than necessary. You are not permitted to include math.h. You can do the math with modulo arithmetic and integer division. */ int **split_array(const int *s, int length) { int num_odds = 0; int num_evens = 0; for (int i = 0; i < length; i++) { if ((i % 2) == 0) { num_evens += 1; } else { num_odds += 1; } } int *final_array = malloc(2 * sizeof(char*)); final_array[0] = malloc(num_evens * sizeof(int)); final_array[1] = malloc(num_odds * sizeof(int)); int even_counter = 0; int odd_counter = 0; for (int i = 0; i < length; i++) { if ((i % 2) == 0) { final_array[0][even_counter] = s[i]; even_counter += 1; } else { final_array[1][odd_counter] = s[i]; odd_counter += 1; } } return final_array; } /* Return a pointer to an array of ints with size elements. - strs is an array of strings where each element is the string representation of an integer. - size is the size of the array */ int *build_array(char **strs, int size) { int *array = malloc(sizeof(int) * size); for (int i = 0; i < size; i++) { array[i] = strtol(strs[i], NULL, 10); } return array; } int main(int argc, char **argv) { /* Replace the comments in the next two lines with the appropriate arguments. Do not add any additional lines of code to the main function or make other changes. */ int *full_array = build_array(&argv[1], argc-1); int **result = split_array(full_array, argc-1); printf("Original array:\n"); for (int i = 0; i < argc - 1; i++) { printf("%d ", full_array[i]); } printf("\n"); printf("result[0]:\n"); for (int i = 0; i < argc / 2; i++) { printf("%d ", result[0][i]); } printf("\n"); printf("result[1]:\n"); for (int i = 0; i < (argc - 1) / 2; i++) { printf("%d ", result[1][i]); } printf("\n"); free(full_array); free(result[0]); free(result[1]); free(result); return 0; }
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63c648b75f004bf4898cff04
2023-01-27T19:24:43.113Z
General Question
v1
how to split string?
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null
null
63c648b75f004bf4898cff04
2023-01-27T19:26:15.219Z
General Question
v1
slice a string from an index
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null
63c648b75f004bf4898cff04
2023-01-27T19:28:50.867Z
General Question
v1
slice a string from an index without using strncpy
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null
null
63c648b75f004bf4898cff04
2023-01-30T04:20:25.275Z
Question from Code
v1
getting segmentation fault, how to fix?
char* season = "winter"; char* holiday = malloc(20 * sizeof(char)); strncpy(holiday, "Valentine's Day", 16); season[17] = '\0';
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null
63c648b75f004bf4898cff04
2023-01-30T04:21:34.327Z
Question from Code
v1
getting segmentation fault, how to fix?
char* holiday = malloc(20 * sizeof(char)); strncpy(holiday, "Valentine's Day", 16); season[17] = '\0';
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null
63c648b75f004bf4898cff04
2023-01-30T04:23:37.359Z
General Question
v1
Define a stack-allocated string called holiday that has space for 20 characters including the null terminator. Set its initial value to "Valentine's Day".
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null
63c648b75f004bf4898cff04
2023-01-31T00:06:54.625Z
General Question
v1
check if two strings are equal in c
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null
63c648b75f004bf4898cff04
2023-01-31T00:12:33.658Z
General Question
v1
length of string
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null
63c648b75f004bf4898cff04
2023-01-31T00:22:54.270Z
General Question
v1
printf format for long unsigned int
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null
63c648b75f004bf4898cff04
2023-01-31T00:46:41.429Z
General Question
v1
append string to another string
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null
null
63c648b75f004bf4898cff04
2023-01-31T00:48:05.840Z
General Question
v1
using strncat to append a string to another string
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null
null
63c648b75f004bf4898cff04
2023-01-31T00:53:24.719Z
General Question
v1
what does strncpy return
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null
null
63c648b75f004bf4898cff04
2023-01-31T01:03:52.040Z
General Question
v1
append a space to a string
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null
null
63c648b75f004bf4898cff04
2023-01-31T01:27:53.789Z
Question from Code
v1
how to add a space in the string greeting
int main(int argc, char **argv) { if (argc != 3) { fprintf(stderr, "Usage: greeting message name\n"); return 1; } char greeting[20]; char *name = argv[2]; // Your code goes here int length = strlen(argv[1]); strncpy(greeting, argv[1], length); strcat(greeting, " "); strncat(greeting, name, 20 - strlen(greeting)); printf("%s\n", greeting); return 0; }
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63c648b75f004bf4898cff04
2023-01-31T01:28:17.568Z
Question from Code
v1
how to use strcat to add a space to the end of greeting
int main(int argc, char **argv) { if (argc != 3) { fprintf(stderr, "Usage: greeting message name\n"); return 1; } char greeting[20]; char *name = argv[2]; // Your code goes here int length = strlen(argv[1]); strncpy(greeting, argv[1], length); strcat(greeting, " "); strncat(greeting, name, 20 - strlen(greeting)); printf("%s\n", greeting); return 0; }
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63c648b75f004bf4898cff04
2023-01-31T01:30:22.214Z
Help Fix Code
v1
null
int main(int argc, char **argv) { if (argc != 3) { fprintf(stderr, "Usage: greeting message name\n"); return 1; } char greeting[20]; char *name = argv[2]; // Your code goes here int length = strlen(argv[1]); strncpy(greeting, argv[1], length); strcat(greeting, " "); strncat(greeting, name, 20 - strlen(greeting)); printf("%s\n", greeting); return 0; }
correct string not returning
null
63c648b75f004bf4898cff04
2023-01-31T01:38:18.730Z
Help Fix Code
v1
null
char greeting[20]; char *name = argv[2]; // Your code goes here int length = strlen(argv[1]); strncpy(greeting, argv[1], length); strcat(greeting, " "); strncat(greeting, name, 20 - strlen(greeting));
append space to greeting string and then append name string to it
null
63c648b75f004bf4898cff04
2023-02-03T23:07:26.691Z
General Question
v1
sys.stdout() printing a newline character at the end of the file python
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null
63c648b75f004bf4898cff04
2023-02-06T04:44:45.740Z
General Question
v1
how to write a is to x as x is to b in today's mathematical terms
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null
null
63c648b75f004bf4898cff04
2023-02-06T06:14:29.980Z
General Question
v1
initialize an array in a struct with all null values
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null
null
63c648b75f004bf4898cff04
2023-02-06T06:29:01.506Z
Question from Code
v1
this leads to a segmentation fault, how to fix?
int create_user(const char *name, User **user_ptr_add) { User *curr_user = *user_ptr_add; if (strlen(name) > 29) { return 2; } while (curr_user->next != NULL) { if (strcmp(name, curr_user->name) == 0) { return 1; } curr_user = curr_user->next; } struct user new_user; strncpy(new_user.name, name, strlen(name)); new_user.name[strlen(name)] = '\0'; new_user.profile_pic[0] = '\0'; new_user.first_post = NULL; memset(new_user.friends, '\0', sizeof(new_user.friends)); new_user.next = NULL; return 0;
null
null
63c648b75f004bf4898cff04
2023-02-06T06:34:34.616Z
Question from Code
v1
gives an error, how to fix?
int create_user(const char *name, User **user_ptr_add) { User *curr_user = *user_ptr_add; if (strlen(name) > 29) { return 2; } while (curr_user->next != NULL) { if (strcmp(name, curr_user->name) == 0) { return 1; } curr_user = curr_user->next; } User *new_user = malloc(sizeof(User)); strncpy(new_user.name, name, strlen(name)); new_user.name[strlen(name)] = '\0'; new_user.profile_pic[0] = '\0'; new_user.first_post = NULL; memset(new_user.friends, '\0', sizeof(new_user.friends)); new_user.next = NULL; return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-06T06:36:44.358Z
Question from Code
v1
gives a segmentation fault, how to fix?
int create_user(const char *name, User **user_ptr_add) { User *curr_user = *user_ptr_add; if (strlen(name) > 29) { return 2; } while (curr_user->next != NULL) { if (strcmp(name, curr_user->name) == 0) { return 1; } curr_user = curr_user->next; } User *new_user = malloc(sizeof(User)); strncpy(new_user->name, name, strlen(name)); new_user->name[strlen(name)] = '\0'; new_user->profile_pic[0] = '\0'; new_user->first_post = NULL; memset(new_user->friends, '\0', sizeof(new_user->friends)); new_user->next = NULL; *user_ptr_add = new_user; return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-06T06:37:19.796Z
Question from Code
v1
how can I use `curr_user` ?
int create_user(const char *name, User **user_ptr_add) { User *curr_user = *user_ptr_add; if (strlen(name) > 29) { return 2; } while (curr_user->next != NULL) { if (strcmp(name, curr_user->name) == 0) { return 1; } curr_user = curr_user->next; } User *new_user = malloc(sizeof(User)); strncpy(new_user->name, name, strlen(name)); new_user->name[strlen(name)] = '\0'; new_user->profile_pic[0] = '\0'; new_user->first_post = NULL; memset(new_user->friends, '\0', sizeof(new_user->friends)); new_user->next = NULL; *user_ptr_add = new_user; return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-06T06:38:53.319Z
Help Fix Code
v1
null
int create_user(const char *name, User **user_ptr_add) { User *curr_user = *user_ptr_add; if (strlen(name) > 29) { return 2; } while (curr_user->next != NULL) { if (strcmp(name, curr_user->name) == 0) { return 1; } curr_user = curr_user->next; } User *new_user = malloc(sizeof(User)); strncpy(new_user->name, name, strlen(name)); new_user->name[strlen(name)] = '\0'; new_user->profile_pic[0] = '\0'; new_user->first_post = NULL; memset(new_user->friends, '\0', sizeof(new_user->friends)); new_user->next = NULL; *user_ptr_add = new_user; return 0; }
create a new user with the given name and add it to the tail of the list pointed to by user_ptr_add
null
63c648b75f004bf4898cff04
2023-02-06T07:16:30.197Z
Question from Code
v1
gives segmentation fault, how to fix?
int create_user(const char *name, User **user_ptr_add) { User *curr_user = *user_ptr_add; if (strlen(name) > 29) { return 2; } while (curr_user->next != NULL) { if (strcmp(name, curr_user->name) == 0) { return 1; } curr_user = curr_user->next; } User *new_user = malloc(sizeof(User)); strncpy(new_user->name, name, strlen(name)); new_user->name[strlen(name)] = '\0'; new_user->profile_pic[0] = '\0'; new_user->first_post = NULL; memset(new_user->friends, '\0', sizeof(new_user->friends)); new_user->next = NULL; curr_user->next = new_user; return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-06T07:22:34.513Z
Question from Code
v1
not returning 1 even in the case a user with the name already exists, how to fix?
while (curr_user->next != NULL) { if (strcmp(name, curr_user->name) == 0) { return 1; } curr_user = curr_user->next; }
null
null
63c648b75f004bf4898cff04
2023-02-06T07:23:23.972Z
Explain Code
v1
null
while (curr_user->next != NULL) { if (strcmp(name, curr_user->name) == 0) { return 1; } curr_user = curr_user->next; }
null
null
63c648b75f004bf4898cff04
2023-02-06T07:30:00.597Z
Explain Code
v1
null
int create_user(const char *name, User **user_ptr_add) { User *curr_user = *user_ptr_add; if (strlen(name) > 29) { return 2; } if (curr_user != NULL) { while (curr_user->next != NULL) { if (strcmp(name, curr_user->name) == 0) { return 1; } curr_user = curr_user->next; } } User *new_user = malloc(sizeof(User)); strncpy(new_user->name, name, strlen(name)); new_user->name[strlen(name)] = '\0'; new_user->profile_pic[0] = '\0'; new_user->first_post = NULL; memset(new_user->friends, '\0', sizeof(new_user->friends)); new_user->next = NULL; if (curr_user != NULL) { curr_user->next = new_user; } else { curr_user = new_user; } return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-07T23:31:20.470Z
General Question
v1
when inserting a new node into a linked list, how to check if the node with a value currently exists?
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null
null
63c648b75f004bf4898cff04
2023-02-07T23:45:02.956Z
General Question
v1
what is a pointer to pointer to structure in c
null
null
null
63c648b75f004bf4898cff04
2023-02-08T00:59:43.251Z
General Question
v1
how to cast an object in c
null
null
null
63c648b75f004bf4898cff04
2023-02-08T01:21:23.130Z
General Question
v1
check if a file is not openable in c using fopen
null
null
null
63c648b75f004bf4898cff04
2023-02-08T01:58:03.729Z
General Question
v1
add a new element at the first empty spot in c
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null
null
63c648b75f004bf4898cff04
2023-02-08T02:24:38.685Z
General Question
v1
read lines from a file and output it in the console c
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null
null
63c648b75f004bf4898cff04
2023-02-08T02:27:51.524Z
General Question
v1
fgets example usage
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null
null
63c648b75f004bf4898cff04
2023-02-08T02:31:28.481Z
General Question
v1
example of fgets using fopen
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null
null
63c648b75f004bf4898cff04
2023-02-08T04:18:07.372Z
Help Fix Code
v1
null
for (int i; i < 10; i++){ printf("Name is: %i\n", i); }
print name is 1, 2, 3, 4 and so on
null
63c648b75f004bf4898cff04
2023-02-08T06:49:49.303Z
Help Fix Code
v1
null
int make_friends(const char *name1, const char *name2, User *head) { User *user1 = find_user(name1, head); User *user2 = find_user(name2, head); if (user1 == NULL || user2 == NULL) { return 4; } if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i])->name == NULL) { user2->friends[i] = user1; break; } } return 0; }
function randomly returning segmentation fault
null
63c648b75f004bf4898cff04
2023-02-08T07:21:28.830Z
General Question
v1
how to bugfix a segmentation fault?
null
null
null
63c648b75f004bf4898cff04
2023-02-08T07:29:56.241Z
General Question
v1
print time_t pointer in a readable format
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null
null
63c648b75f004bf4898cff04
2023-02-08T07:30:48.863Z
General Question
v1
get current time into a variable
null
null
null
63c648b75f004bf4898cff04
2023-02-09T04:12:32.023Z
Question from Code
v1
getting a segmentation fault, how to fix?
int make_friends(const char *name1, const char *name2, User *head) { User *user1 = find_user(name1, head); User *user2 = find_user(name2, head); printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (user1 == NULL || user2 == NULL) { printf("One or both users are NULL"); return 4; } if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i])->name == NULL) { user2->friends[i] = user1; break; } } return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-09T04:13:25.535Z
Question from Code
v1
how to dereference user2 to get a User*
int make_friends(const char *name1, const char *name2, User *head) { User *user1 = find_user(name1, head); User *user2 = find_user(name2, head); printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (user1 == NULL || user2 == NULL) { printf("One or both users are NULL"); return 4; } if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i])->name == NULL) { user2->friends[i] = user1; break; } } return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-09T04:13:47.186Z
Question from Code
v1
getting a segmentation fault, how to fix it?
int make_friends(const char *name1, const char *name2, User *head) { User *user1 = find_user(name1, head); User *user2 = find_user(name2, head); printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (user1 == NULL || user2 == NULL) { printf("One or both users are NULL"); return 4; } if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i])->name == NULL) { user2->friends[i] = user1; break; } } return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-09T04:15:14.792Z
Question from Code
v1
getting a segmentation fault, how to fix?
int make_friends(const char *name1, const char *name2, User *head) { User *user1 = find_user(name1, head); User *user2 = find_user(name2, head); printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (user1 == NULL || user2 == NULL) { printf("One or both users are NULL"); return 4; } if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i])->name == NULL) { user2->friends[i] = user1; break; } } return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-09T04:27:42.273Z
Question from Code
v1
getting a segmentation fault, how to fix?
int make_friends(const char *name1, const char *name2, User *head) { User *user1 = find_user(name1, head); User *user2 = find_user(name2, head); printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (user1 == NULL || user2 == NULL) { printf("One or both users are NULL"); return 4; } if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i])->name == NULL) { user2->friends[i] = user1; break; } } return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-09T04:28:13.979Z
Question from Code
v1
getting a segmentation fault, how to fix?
int make_friends(const char *name1, const char *name2, User *head) { User *user1 = find_user(name1, head); User *user2 = find_user(name2, head); printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (user1 == NULL || user2 == NULL) { printf("One or both users are NULL"); return 4; } if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i])->name == NULL) { user2->friends[i] = user1; break; } } return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-09T04:29:13.479Z
Question from Code
v1
getting a segmentation fault, how to fix? please tell the exact lines or chunks of code that might be causing the issue
int make_friends(const char *name1, const char *name2, User *head) { User *user1 = find_user(name1, head); User *user2 = find_user(name2, head); printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (user1 == NULL || user2 == NULL) { printf("One or both users are NULL"); return 4; } if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i])->name == NULL) { user2->friends[i] = user1; break; } } return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-09T04:34:50.560Z
Question from Code
v1
getting segmentation fault, how to fix it?
int make_friends(const char *name1, const char *name2, User *head) { User *user1 = find_user(name1, head); User *user2 = find_user(name2, head); if (user1 == NULL || user2 == NULL) { printf("One or both users are NULL"); return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i])->name == NULL) { user2->friends[i] = user1; break; } } return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-09T04:35:28.684Z
Question from Code
v1
getting segmentation fault, how to fix it?
int make_friends(const char *name1, const char *name2, User *head) { User *user1 = find_user(name1, head); User *user2 = find_user(name2, head); if (user1 == NULL || user2 == NULL) { printf("One or both users are NULL"); return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i])->name != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i])->name == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i])->name == NULL) { user2->friends[i] = user1; break; } } return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-09T04:46:49.451Z
Question from Code
v1
getting a segmentation fault on specific inputs, how to fix it?
int make_friends(const char *name1, const char *name2, User *head) { printf("The head rn is: %s\n", head->name); User *user1 = find_user(name1, head); printf("The head after first search is: %s\n", head->name); User *user2 = find_user(name2, head); if (user1 == NULL || user2 == NULL) { printf("One or both users are NULL"); return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i]) == NULL) { user2->friends[i] = user1; break; } } return 0; }
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null
63c648b75f004bf4898cff04
2023-02-09T04:47:47.668Z
Question from Code
v1
how to make a copy of the head pointer
int make_friends(const char *name1, const char *name2, User *head) { printf("The head rn is: %s\n", head->name); User *user1 = find_user(name1, head); printf("The head after first search is: %s\n", head->name); User *user2 = find_user(name2, head); if (user1 == NULL || user2 == NULL) { printf("One or both users are NULL"); return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i]) == NULL) { user2->friends[i] = user1; break; } } return 0; }
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null
63c648b75f004bf4898cff04
2023-02-09T04:50:45.666Z
Question from Code
v1
getting a segmentation fault on specific inputs, how to fix it?
int make_friends(const char *name1, const char *name2, User *head) { User *head_copy1 = head; User *head_copy2 = head; User *user1 = find_user(name1, head_copy1); User *user2 = find_user(name2, head_copy2); if (user1 == NULL || user2 == NULL) { return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i]) == NULL) { user2->friends[i] = user1; break; } } return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-09T04:52:27.631Z
Question from Code
v1
getting a segmentation fault on specific inputs, how to fix it without changing find_user?
int make_friends(const char *name1, const char *name2, User *head) { User *head_copy1 = head; User *head_copy2 = head; User *user1 = find_user(name1, head_copy1); User *user2 = find_user(name2, head_copy2); if (user1 == NULL || user2 == NULL) { return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i]) == NULL) { user2->friends[i] = user1; break; } } return 0; }
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null
63c648b75f004bf4898cff04
2023-02-09T04:53:46.074Z
Question from Code
v1
getting a segmentation fault on specific inputs, how to fix it?
int make_friends(const char *name1, const char *name2, User *head) { User *head_copy1 = head; User *head_copy2 = head; User *user1 = find_user(name1, head_copy1); User *user2 = find_user(name2, head_copy2); if (user1 == NULL || user2 == NULL) { return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i]) == NULL) { user2->friends[i] = user1; break; } } return 0; }
null
null
63c648b75f004bf4898cff04
2023-02-09T04:54:44.148Z
Question from Code
v1
getting a segmentation fault on specific inputs, how to fix it?
int make_friends(const char *name1, const char *name2, User *head) { User *head_copy1 = head; User *head_copy2 = head; User *user1 = find_user(name1, head_copy1); User *user2 = find_user(name2, head_copy2); if (user1 == NULL || user2 == NULL) { return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i]) == NULL) { user2->friends[i] = user1; break; } } return 0; }
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null
63c648b75f004bf4898cff04
2023-02-09T04:55:31.433Z
Question from Code
v1
getting a segmentation fault on specific inputs, how to fix it?
int make_friends(const char *name1, const char *name2, User *head) { User *head_copy1 = head; User *head_copy2 = head; User *user1 = find_user(name1, head_copy1); User *user2 = find_user(name2, head_copy2); if (user1 == NULL || user2 == NULL) { return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i]) == NULL) { user2->friends[i] = user1; break; } } return 0; }
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null
63c648b75f004bf4898cff04
2023-02-09T05:02:06.031Z
Question from Code
v1
getting a segmentation fault on specific inputs, how to fix it?
int make_friends(const char *name1, const char *name2, User *head) { User *head_copy1 = head; User *head_copy2 = head; User *user1 = find_user(name1, head_copy1); User *user2 = find_user(name2, head_copy2); if (user1 == NULL || user2 == NULL) { return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i]) == NULL) { user2->friends[i] = user1; break; } } return 0; }
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null
63c648b75f004bf4898cff04
2023-02-09T05:02:51.427Z
Help Fix Code
v1
null
int make_friends(const char *name1, const char *name2, User *head) { User *head_copy1 = head; User *head_copy2 = head; User *user1 = find_user(name1, head_copy1); User *user2 = find_user(name2, head_copy2); if (user1 == NULL || user2 == NULL) { return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_one_friends++; } } if ((user2->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; user_two_friends++; } } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i]) == NULL) { user2->friends[i] = user1; break; } } return 0; }
getting a segmentation fault on specific inputs, how to fix it?
null
63c648b75f004bf4898cff04
2023-02-09T05:05:06.073Z
Help Fix Code
v1
null
int make_friends(const char *name1, const char *name2, User *head) { User *head_copy1 = head; User *head_copy2 = head; User *user1 = find_user(name1, head_copy1); User *user2 = find_user(name2, head_copy2); if (user1 == NULL || user2 == NULL) { return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; } user_one_friends++; } if ((user2->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; } user_two_friends++; } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i]) == NULL) { user2->friends[i] = user1; break; } } return 0; }
add friends as required but getting a segmentation fault on specific inputs, how to fix it?
null
63c648b75f004bf4898cff04
2023-02-09T05:06:10.617Z
Help Fix Code
v1
null
int make_friends(const char *name1, const char *name2, User *head) { User *head_copy1 = head; User *head_copy2 = head; User *user1 = find_user(name1, head_copy1); User *user2 = find_user(name2, head_copy2); if (user1 == NULL || user2 == NULL) { return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; } user_one_friends++; } if ((user2->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; } user_two_friends++; } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i]) == NULL) { user2->friends[i] = user1; break; } } return 0; }
getting a segmentation fault on specific inputs, how to fix it?
null
63c648b75f004bf4898cff04
2023-02-09T05:07:35.666Z
Help Fix Code
v1
null
int make_friends(const char *name1, const char *name2, User *head) { User *head_copy1 = head; User *head_copy2 = head; User *user1 = find_user(name1, head_copy1); User *user2 = find_user(name2, head_copy2); if (user1 == NULL || user2 == NULL) { return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; } user_one_friends++; } if ((user2->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; } user_two_friends++; } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i]) == NULL) { user2->friends[i] = user1; break; } } return 0; }
getting a segmentation fault on specific inputs, how to fix it?
null
63c648b75f004bf4898cff04
2023-02-09T05:33:50.436Z
Question from Code
v1
getting a segmentation fault on specific inputs, how to fix it?
int make_friends(const char *name1, const char *name2, User *head) { User *head_copy1 = head; User *head_copy2 = head; User *user1 = find_user(name1, head_copy1); User *user2 = find_user(name2, head_copy2); if (user1 == NULL || user2 == NULL) { return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; } user_one_friends++; } if ((user2->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; } user_two_friends++; } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i]) == NULL) { user2->friends[i] = user1; break; } } return 0; }
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null
63c648b75f004bf4898cff04
2023-02-09T05:50:02.650Z
Question from Code
v1
how to make two separate copies of head pointer
int make_friends(const char *name1, const char *name2, User *head) { User *head_copy1 = head; User *head_copy2 = head; User *user1 = find_user(name1, head_copy1); User *user2 = find_user(name2, head_copy2); if (user1 == NULL || user2 == NULL) { return 4; } printf("The first user is %s", user1->name); printf("The second user is %s", user2->name); if (strcmp(name1, name2) == 0) { return 3; } int user_one_friends = 0; int user_two_friends = 0; int already_friends = 0; for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; } user_one_friends++; } if ((user2->friends[i]) != NULL) { if (strcmp((user1->friends[i])->name, user2->name) == 0) { already_friends += 1; } user_two_friends++; } } if (already_friends == 2) { return 1; } if (user_one_friends == MAX_FRIENDS || user_two_friends == MAX_FRIENDS) { return 2; } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user1->friends[i]) == NULL) { user1->friends[i] = user2; break; } } for (int i = 0; i < MAX_FRIENDS - 1; i++){ if ((user2->friends[i]) == NULL) { user2->friends[i] = user1; break; } } return 0; }
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63c648b75f004bf4898cff04
2023-02-10T06:51:29.211Z
General Question
v1
how to get the current time in a malloc using ctime and time_t
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null
63c648b75f004bf4898cff04
2023-02-14T04:02:41.062Z
Question from Code
v1
returns segmentation fault for very large values of capacity
char *copy(char *dest, const char *src, int capacity) { for (int i = 0; i < capacity; i++) { dest[i] = src[i]; } dest[capacity] = '\0'; return dest; }
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63c648b75f004bf4898cff04
2023-02-14T04:03:00.344Z
Question from Code
v1
returns segmentation fault for very large values of capacity, how to fix?
char *copy(char *dest, const char *src, int capacity) { for (int i = 0; i < capacity; i++) { dest[i] = src[i]; } dest[capacity] = '\0'; return dest; }
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null
63c648b75f004bf4898cff04
2023-02-24T22:56:09.102Z
General Question
v1
what does the total in ls -lF return mean?
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