bilet_5

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <random>
#include <time.h>


void set_matrix(int** mat, int n)
{
    for (int i = 0; i < n; i++)
        for (int j = 0; j < n; j++)
            mat[i][j] = rand() % 10;
}

void print_matrix(int** mat, int n, int m)
{
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < m; j++)
            printf("%3d", mat[i][j]);
        printf("\n");
    }
}

void delete_str1(int** mat, int n, int k)
{
    for (int i = k; i < n-1; i++)
    {
        int* tmp = mat[i];
        mat[i] = mat[i + 1];
        mat[i + 1] = tmp;
    }
}

void delete_str2(int** mat, int n, int k)
{
    for (int j = 0; j < n; j++)
        for (int i = k; i < n - 1; i++)
        {
            int tmp = mat[i][j];
            mat[i][j] = mat[i + 1][j];
            mat[i + 1][j] = tmp;
        }
}

int change_mat(int** mat, int n)
{
    int cnt = 0;
    int ind = 0;
    for (int i = 0; i < n; i++)
        if (mat[ind][n - 1] == 2)
        {
            delete_str2(mat, n, ind);
            cnt++;
        }
        else
            ind++;
    return cnt;
}

void memory_clean(int** mat, int n)
{
    for (int i = 0; i < n; i++)
        delete[] mat[i];
    delete[] mat;
}

int main()
{
    int n, cnt;
    int** mat;
    puts("Enter n:");
    scanf("%d", &n);
    mat = new int* [n];
    for (int i = 0; i < n; i++)
        mat[i] = new int[n];
    srand(time(0));
    set_matrix(mat, n);
    puts("Matrix:");
    print_matrix(mat, n, n);
    cnt = change_mat(mat, n);
    puts("Matrix:");
    print_matrix(mat, n-cnt, n);
    memory_clean(mat, n);
    return 0;
}