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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.  
  11.  
  12. char *setPalindrome(char s[]){
  13. int i,size;
  14. char *tmp;
  15. size=myStrlen(s);
  16. tmp=(char *)malloc(sizeof(char)*(2*size+1));
  17. if(tmp==NULL){
  18. printf("ERROR\n");
  19. return NULL;
  20. }
  21. for(i=0;i<size;i++){
  22. tmp[i]=s[i];
  23. }
  24. for(i=0;i<size;i++){
  25. tmp[i+size]=s[size-i-1];
  26. }
  27. tmp[2*size]='\0';
  28. return tmp;
  29. }
  30.  
  31.  
  32.  
  33. int main(){
  34.     int i;
  35.     char nyuryoku[1024]; //入力
  36.     char *kaibun;   //回文を受け取る
  37.     scanf("%s",nyuryoku);
  38.     kaibun = setPalindrome(nyuryoku);
  39.     printf("%s\n  -> %s\n",nyuryoku,kaibun);
  40.     free(kaibun);
  41.     return 0;
  42. }
  43.  
Success #stdin #stdout 0.01s 5276KB
comments (?)
stdin
copy 
abcd
stdout
copy 
abcd
  -> abcddcba
https://ideone.com/IvYnpG
4課題2.2
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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