Palindromi

#include <iostream>
#include <string>
int main() {
    std::string input;
    std::cin >> input;

    int len = input.size();
    int middle = len/2;
    int ans = 0;

    for (int i = 0; i < middle; i++) {
        if (input[i] != input [len-i]) {
            ans++;
        }
    }

    std::cout << ans << "\n";
}

Test 1 (public)

Verdict: ACCEPTED

Test 2 (public)

Verdict: WRONG ANSWER

Test 3 (public)

Verdict: ACCEPTED

Test 4 (public)

Verdict: WRONG ANSWER

Test 5 (public)

Verdict: ACCEPTED

Test 6 (public)

Verdict: WRONG ANSWER

Test 7 (public)

Verdict: WRONG ANSWER

Test 8 (public)

Verdict: WRONG ANSWER

Test 9 (public)

Verdict: WRONG ANSWER

Test 10 (public)

Verdict: WRONG ANSWER