В-3 зд - 1. Предложение-перевёртыш

#include <iostream>
#include <windows.h>
using namespace std;
const int LEN = 1000;
unsigned char rus(unsigned char a) {
    if (a >= 192 && a <= 223)
        return a + 32;
    return a;
}
void my_gets(unsigned char* ar, int l) {
    int i = 0;
    unsigned char a = getchar();
    while (a != '\n' && a != '.' && i < l && a != '!') {
        if (a != ' ' && a != ',' && a != '-' && a != '—') {
            ar[i] = rus(a);
            ++i;
        }
        a = getchar();
    }
    ar[i] = '\0';
}
void string_reverse(unsigned char* source, unsigned char * dest, int l){
    for (int i = 0; i < l; ++i)
        dest[i] = source[l - i - 1];
    dest[l] = '\0';
}
int check(unsigned char* source, unsigned char* rcopy, int l) {
    int flag = 1;
    for (int i = 0; i < l; ++i) {
        if (source[i] != rcopy[i]) {
            flag = 0;
            break;
        }
    }
    return flag;
}
int my_len(unsigned char* source) {
    int i = 0;
    while (source[i++] != '\0')
        ;
    return --i;
}
int main() {
    SetConsoleOutputCP(1251);    //#include <windows.h>
    SetConsoleCP(1251);
    unsigned char source[LEN];
    unsigned char rcopy[LEN];

    my_gets(source, LEN);
    int len = my_len(source);
    string_reverse(source, rcopy, len);

    if (check(source, rcopy, len))
        cout << "Перевёртыш";
    else
        cout << "Не перевёртыш";

    return 0;
}