Palindromi

#include <iostream>
#include <string>

int main(){
    std::string s;
    std::cin >> s;

    int l = s.length();
    int x = 0;

    for (int i = 0; i < l / 2; i++){
        if (s[i] != s[l - 1 - i]) {
            x++;
        }
    }

    std::cout << x << "\n";

    return 0;
}

Test 1 (public)

Verdict: ACCEPTED

Test 2 (public)

Verdict: ACCEPTED

Test 3 (public)

Verdict: ACCEPTED

Test 4 (public)

Verdict: ACCEPTED

Test 5 (public)

Verdict: ACCEPTED

Test 6 (public)

Verdict: ACCEPTED

Test 7 (public)

Verdict: ACCEPTED

Test 8 (public)

Verdict: ACCEPTED

Test 9 (public)

Verdict: ACCEPTED

Test 10 (public)

Verdict: ACCEPTED