Лаба 6 Вариант 2

#include "pch.h"
#include <iostream>

using namespace std;

int main()
{
    char data[255];

    cin >> data;

    int start = 0, min_size = INT_MAX, min_start = 0;
    char ch_type = data[0];

    for (int i = 0; i < strlen(data); i++)
    {
        if (data[i] != ch_type)
        {
            int size = i - start;

            if (size < min_size)
            {
                min_start = start;
                min_size = size;
            }

            start = i;
            ch_type = data[i];
        }
    }

    if (strlen(data) - start < min_size)
    {
        min_start = start;
        min_size = strlen(data) - start;
    }

    for (int i = min_start; i < min_start + min_size; i++)
        cout << data[i];
}