Lab1/E2

#include <iostream>

int main() {
    int n;
    std::cin >> n;
    char* mas = new char[n];
    for (int i = 0; i < n; i++) {
        char tmp;
        std::cin >> tmp;
        mas[i] = tmp;
    }
    int i_end;
    if (n % 2 == 0) {
        i_end = n / 2;
    }
    else {
        i_end = n / 2 + 1;
    }
    std::cout << i_end << std::endl;
    bool answer = true;
    short int counter = 0;
    short int sdvig = 0;
    int i = 0;
    while (i < i_end){
        if (mas[i] != mas[n - i - 1 + sdvig]) {
            counter++;
            sdvig++;
//            std::cout << i << " ";
        }
        if (counter > 1) {
            answer = false;
            break;
        }
        i++;
    }
    if (answer) {
        std::cout << "enter" << std::endl;
        i = n - 1;
        while (i > i_end - sdvig - 1){
            if (mas[i - sdvig] != mas[n - i - 1]) {
                counter++;
                sdvig++;
//            std::cout << i << " ";
            }
            if (counter > 1) {
                answer = false;
                break;
            }
            i--;
        }
    }

    if (answer && n != 1) {
        std::cout << "YES";
    }
    else {
        std::cout << "NO";
    }
    delete[] mas;
    return 0;
}