lab7

#include <iostream>
#include <fstream>
#include <iomanip>
#include <windows.h>
#include <cstring>
using namespace std;

const char* finName = "D:\\Programming\\lab7\\lab7\\textIn.txt";
const char* foutName = "D:\\Programming\\lab7\\lab7\\textOut.txt";
const char* keysName = "D:\\Programming\\lab7\\lab7\\keys.txt";

int main()
{
    SetConsoleCP(1251);
    SetConsoleOutputCP(1251);
    ifstream fin;
    fin.open(finName, ios::in);
    ofstream keysIn;
    keysIn.open(keysName);
    unsigned char arr1[50], arr2[30];
    int keys[5000] = {}, ind = 0, stat[256] = {};
    while (!fin.eof())
    {
        fin >> arr1;
        for (int i = 0; arr1[i] != '\0'; i++)
            keys[ind] += (arr1[i] - '0');
        keys[ind] %= 256;
        keysIn << keys[ind] << " ";
        ind++;
    }
    fin.seekg(0, ios_base::beg); fin.close(); fin.open(finName);
    ofstream fout;
    fout.open(foutName);
    unsigned char sym1 = NULL;
    int iterator = 0;
    while (true)
    {
        if (iterator == ind)
            iterator = 0;
        fin >> noskipws >> sym1;
        if (fin.eof())
            break;
        if (sym1 != ' ' && sym1 != '\n')
        {
            fout << (unsigned char)(((int)(sym1) ^ keys[iterator]));
            iterator++;
        }
        else
            fout << sym1;
    }
    fout.close();
    fin.seekg(0, ios_base::beg); fin.close(); fin.open(finName);
    ifstream foutIn;
    foutIn.open(foutName);
    cout << "Введите исследуемый символ: ";
    unsigned char sym;
    unsigned char sym2;
    cin >> sym;
    while (true)
    {
        fin >> sym1;
        foutIn >> sym2;
        if (fin.eof())
            break;
        if (sym1 == sym)
            stat[(unsigned int)(sym2)]++;
    }
    fin.close();
    foutIn.close();
    for (int i = 0; i < 256; i++)
    {
        cout << setw(4) << stat[i] << " ";
        if ((i + 1) % 16 == 0)
            cout << endl;
    }
    system("pause");
    return 0;
}