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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. {int a,i;
  12. a=myStrlen(s);
  13. 	char *tmp;
  14. tmp=(char*)malloc(sizeof(char)*a*2+1);
  15. if(tmp==NULL)
  16. {printf("ERROR\n");
  17. return 0;}
  18.  
  19. for(i=0;i<a;i++)
  20. {tmp[i]=s[i];}
  21. for(i=0;i<a;i++)
  22. {tmp[a+i]=s[a-i-1];}
  23. tmp[a*2]='\0';
  24. return tmp;
  25. }
  26.  
  27.  
  28.  
  29. //メイン関数はいじる必要はありません
  30. int main(){
  31.     int i;
  32.     char nyuryoku[1024]; //入力
  33.     char *kaibun;   //回文を受け取る
  34.     scanf("%s",nyuryoku);
  35.     kaibun = setPalindrome(nyuryoku);
  36.     printf("%s\n  -> %s\n",nyuryoku,kaibun);
  37.     free(kaibun);
  38.     return 0;
  39. }
  40.  
  41.  
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
copy 
abcd
stdout
copy 
abcd
  -> abcddcba
https://ideone.com/XyiYph
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

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