3 безопасность 2к19

#include "pch.h"
#include <string.h>
#include <fstream>
#include <iostream>
#include <cmath>
#include <limits>
#include <iomanip>
#include <list>
#include <string>
#include <cstring>
using namespace std;

int main()
{
	char mess[1000];
	char messb[1000];
	char alpha[] = "абвгдеёжзийклмнопрстуфхцчшщъыьэюя";
	char alphaB[] = "АБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЬЫЭЮЯ";
	int count[33][33] = { 0 };
	int totalcount = 0;
	char assist[] = " .,-:;^123456789!?";
	int alphabeg = strlen(alpha);
	char codealpha[100];
	char codealphaB[100];
	system("chcp 1251");
	system("cls");
	int zeronumb;
	int n = 4, k = 4;
	int nr;
	int target = 0;
	ofstream fout("end.txt");
	ifstream start("start.txt");
	string buf;
	while (!start.eof())
	{
		getline(start,buf);
	}
	int messtagret = 0;
	for (int i = 0; i < buf.length() - 1; ++i)
	{
		int check = 0;
		for (int j = 0; j < alphabeg; ++j)
		{
			if ((buf[i] == alpha[j]) || (buf[i] == alphaB[j]))
			{
				for (int k = 0; k < alphabeg; ++k)
				{
					if ((buf[i+1] == alpha[k]) || (buf[i+1] == alphaB[k]))
					{
						count[j][k]++;
						totalcount++;
						break;
					}
				}
			}
		}
	}
		int length = target;
		if (alphabeg%n == 0) { cout << "Error, wrong A key"; }
		cout << "Сочетание" << "\t" << "Всего в тексте" << "\t" << "Относительная частота" << endl;;
		for (int i = 0; i < alphabeg; ++i)
		{
			for (int j = 0; j < alphabeg; ++j)
			{
				float oftency = (float)count[i][j] / totalcount;
				if (oftency > 0) {
					cout << alphaB[i] << alpha[j] << "\t" << count[i][j] << "\t" << setprecision(3) << oftency << "%" << endl;
					fout << alphaB[i] << alpha[j] << "\t" << count[i][j] << "\t" << setprecision(3) << oftency << "%" << endl;
				}
			}
		}
	system("pause");
	fout.close();
	return 0;
}