#include "pch.h"
#include <iostream>
#include <string>
#include <cstring>
using namespace std;

int main()
{
	string str = "this is one test string!";
	char bukvi[] = { 'e','t','i','o' };
	int sz = str.size();


	for (int i = 0; i < 4; i++) {
		int cnt = 0, max = 0, temp = 0;
		for (int j = 0; j < sz; j++) {
			if (str[j] == bukvi[i]) {

				cnt++;
			}
		}
		if (max < cnt) {
			temp = max;
			max = cnt;
			cnt = 0;
			if (max > temp) {
				cout << bukvi[i] << " is the most common letter. It is repeated " << max << " times.\n";
			}
		}

	}
}