#include <stdio.h>
#include <stdlib.h>
#include <iostream>
#define SIZE 100
#define IFILE "in.txt"

int main()
{
    char buf[SIZE];
    FILE* f;
    if ((f = fopen(IFILE, "r")) == NULL)
    {
        perror("fopen");
        exit(1);
    }

    if ((fgets(buf, SIZE, f) == NULL) && ferror(f))
    {
        fprintf(stderr, "Error reading from stream\n");
        exit(2);
    }

    fputs(buf, stdout);
    exit(0);
}

#include <fstream>
#include <iostream>
#include <cstdlib> 

#define SIZE 100
using namespace std;


//прочитати дані з файлу в масив
int main(int min)
{
    ifstream input_file("int.txt");
    char line[SIZE];
    while (!input_file.eof())
    {
        input_file.getline(line, sizeof(line));
        cout << line << endl;
    }

    //упорядкувати масив
    int i, j;
    for (i = 0; SIZE > i; i++)
    {
        min = line[i];
        for (j = i; SIZE > j; j++)
        {
            if (min > line[j]) min = line[j];
        }
        line[i] = min;
    }

    //записати масив в файл
    ofstream infile("out.txt");
    infile.is_open();
    infile << " " << endl;

    for (int i = 0; i < SIZE; i++)
    {
        for (int j = 0; j < SIZE; j++)
        {
            infile << line[i][j] << " ";
            {
                infile << endl;
            }

            system("pause");
            return 0;
        }
    }
}

bool compare( int a, int b ){
    return a < b;
}
int main(int min){
ifstream input_file("int.txt");
    char line[SIZE];
    while (!input_file.eof())
    {
        input_file.getline(line, sizeof(line));
        cout << line << endl;
    }


    std::sort( std::begin( line ), std::end( line ), compare);
    for ( const auto & elem : line)
        std::cout << elem << " ";
}

#include <fstream>
#include <iostream>
#include <cstdlib> 

#define SIZE 100
using namespace std;



int main(int min)
{
    ifstream input_file("int.txt");
    char line[SIZE];
    while (!input_file.eof())
    {
        input_file.getline(line, sizeof(line));
        cout << line << endl;
    }

    
    for (int i = 1; i < SIZE; ++i)
    {
        for (int r = 0; r < SIZE - i; r++)
        {
            if (line[r] < line[r + 1])
            {
                int temp = line[r];
                line[r] = line[r + 1];
                line[r + 1] = temp;
            }
        }
    }

    
    ofstream infile("out.txt");
    infile.is_open();
    infile << " " << endl;
    for (int i = 0; i < SIZE; ++i)
    {
        cout << line[i] << " ";
    }
    cout << endl;
    
    system("pause");
            return 0;
}