#include <stdio.h>
#include <stdlib.h>
int myStrlen(char s[]){
int i;
for(i=0;s[i]!='\0';i++);
return i;
}
char *setPalindrome(char s[]){
int i,size;
char *a;
size = myStrlen(s);
a
= (char *)malloc(sizeof(char)*(2*size
+1)); if(a == NULL){
return NULL; //void型なので何も返さず終了
}
for(i=0;i<size;i++) a[i] = s[i];
for(i=0;i<size;i++) a[i+size] = s[size-i-1];
a[2*size] = '\0';
return a;
}
int main(){
int i;
char nyuryoku[1024]; //入力
char *kaibun; //回文を受け取る
kaibun = setPalindrome(nyuryoku);
printf("%s\n -> %s\n",nyuryoku
,kaibun
); return 0;
}
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