//Q86. Check if a string is a palindrome.
#include <stdio.h>
#include <string.h>
 
int main() {
    char str[100];
    int i, len, flag = 0;
    for(i=0; i<len/2; i++) {
        if(str[i] != str[len-i-1]) {
            flag = 1;
            break;
        }
    }
    if(flag == 0)
    else
}
 
 
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