files

#include <stdio.h>
#include <iostream>
#include <fstream>

#define SIZE 50

using namespace std;

int main()
{
    char buf[SIZE];
    char max_char;
    int code;
    int max = -1;

    ofstream fout1("input.txt");
    fout1 << "8fhg/fgeGHB_%67jHdAsHNajeSGDGFIiDhasjMZFKhjs~dhdX";
    fout1.close();

    ifstream fin("input.txt");
    fin.getline(buf, SIZE);
    fin.close();

    //65..90, 97..122

    for (int i = 0; i < SIZE - 1; i++)
    {
        code = buf[i];
        if (((code > 64 && code < 91) || (code > 96 && code < 123)) && (code > max))
        {
            //printf("%c = %d\n", buf[i], code);
            max = code;
            max_char = buf[i];
        }
    }

    ofstream fout2("output.txt");
    fout2 << buf << endl;
    fout2 << "max char is ";
    fout2 << max_char;
    fout2.close();

    return 0;
}