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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4.  
  5. void dosomething(size_t c, char* s);
  6. const char *dummy = "1234567890";
  7. const char* inlet = "_";
  8.  
  9. int main(void) {
  10.     for(int i = 0; i < 10; i++) {
  11.         char *s = calloc(11,1);
  12.         strcpy(s, dummy);
  13.         dosomething(1, s);
  14.         free(s);
  15.     }
  16.     return 0;
  17. }
  18.  
  19. void dosomething(size_t c, char* s){
  20.     printf("%s\n", s);
  21.  
  22.     if (c < 10) {
  23.         char *ns = calloc(11,1);
  24.         strncpy(ns, s, c -1);
  25.         strncat(ns, inlet, 1);
  26.         strcat(ns, &s[c]);
  27.         dosomething(c+1, ns);
  28.         free(ns);
  29.     }
  30. }
Success #stdin #stdout 0s 2244KB
comments (?)
stdin
copy 
Standard input is empty
stdout
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1234567890
_234567890
__34567890
___4567890
____567890
_____67890
______7890
_______890
________90
_________0
1234567890
_234567890
__34567890
___4567890
____567890
_____67890
______7890
_______890
________90
_________0
1234567890
_234567890
__34567890
___4567890
____567890
_____67890
______7890
_______890
________90
_________0
1234567890
_234567890
__34567890
___4567890
____567890
_____67890
______7890
_______890
________90
_________0
1234567890
_234567890
__34567890
___4567890
____567890
_____67890
______7890
_______890
________90
_________0
1234567890
_234567890
__34567890
___4567890
____567890
_____67890
______7890
_______890
________90
_________0
1234567890
_234567890
__34567890
___4567890
____567890
_____67890
______7890
_______890
________90
_________0
1234567890
_234567890
__34567890
___4567890
____567890
_____67890
______7890
_______890
________90
_________0
1234567890
_234567890
__34567890
___4567890
____567890
_____67890
______7890
_______890
________90
_________0
1234567890
_234567890
__34567890
___4567890
____567890
_____67890
______7890
_______890
________90
_________0
https://ideone.com/iI4Ewo
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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