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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. size_t findLength(char array[]);
  5. size_t findLength(char array[]) {
  6.     size_t i = 0;
  7.     for (i = 0; array[i] != '\0'; i++) {
  8.     }
  9.     return i;
  10. }
  11.  
  12. char* arrayToString(char **string, size_t size);
  13. char* arrayToString(char **string, size_t size) {
  14.     size_t bigSize = 0;
  15.     size_t len;
  16.     size_t i = 0, j, k;
  17.     for (j = 0; j < size; j++) {
  18.         bigSize += findLength(string[j]);
  19.     }
  20.     char *bigstring = malloc(bigSize + 1);
  21.     for (j = 0; j < size; j++) {
  22.         len = findLength(string[j]);
  23.         for (k = 0; k < len; k++) {
  24.             bigstring[i++] = string[j][k];
  25.         }
  26.     }
  27.     bigstring[i] = '\0';
  28.     return bigstring;
  29. }
  30.  
  31. int main(void){
  32.     char *color[] = { "red", "blue", "red" };
  33.     char *bigstring = arrayToString(color, 3);
  34.     printf("%s\n", bigstring);
  35.     free(bigstring);
  36.     return 0;
  37. }
Success #stdin #stdout 0s 2292KB
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stdin
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Standard input is empty
stdout
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redbluered
https://ideone.com/nhUW8G
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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