# include <stdio.h>
int isPalindrome(char s[]){
int i = 0;
int j = 0;
while (s[j] != '\0') {
j++;
}
j--;
while (i < j) {
if (s[i] != s[j]) {
return 0;
}
i++;
j--;
}
return 1;
}
//メイン関数は書き換えなくてよいです
int main(){
char s[100];
printf("%s -> %d\n",s
,isPalindrome
(s
)); return 0;
}
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