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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int myStrlen(char s[]){
  5.     int i;
  6.     for(i=0;s[i]!='\0';i++);
  7.     return i;
  8. }
  9.  
  10. char *setPalindrome(char s[]){
  11. 	char *tmp;
  12. 	int len=myStrlen(s);
  13. 	int i,j;
  14. 	tmp=(char*)malloc(sizeof(char)*(len*2+1));
  15.  
  16. 	for(i;i<len;i++){
  17. 		tmp[i]=s[i];
  18. 	}
  19. 	for(j=len-1;j>0;j--){
  20. 		tmp[i]=s[i];
  21. 	}
  22. 	tmp[i]='\0';
  23.  
  24. 	return tmp;
  25. }
  26.  
  27. int main(){
  28.     int i;
  29.     char nyuryoku[1024];
  30.     char *kaibun; 
  31.     scanf("%s",nyuryoku);
  32.     kaibun = setPalindrome(nyuryoku);
  33.     printf("%s\n  -> %s\n",nyuryoku,kaibun);
  34.     free(kaibun);
  35.     return 0;
  36. }
  37.  
Success #stdin #stdout 0s 5272KB
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stdin
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abcd
stdout
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abcd
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https://ideone.com/2ZyqxW
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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