Lab5B

#include <iostream>
#include <iomanip>

using namespace std;

int main()
{
    double** a, tmp, * b;
    int i, j, n, m, min;
    cout << "Enter the size of array: ";
    cin >> n >> m;
    cout << "The size is " << n << "x" << m << endl;
    a = new double* [n];
    b = new double[m];
    cout << "Enter elements of array: ";
    for (i = 0; i < n; i++)
    {
        a[i] = new double[m];
        for (j = 0; j < m; j++)
        {
            cin >> a[i][j];
        }
    }
    cout << "Array: " << endl;
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < m; j++)
            cout << setw(5) << a[i][j] << setw(5);
        cout << endl;
    }
    for (j = 0; j < m; j++)
    {
        b[j] = a[0][j];
        for (i = 1; i < n; i++)
            if (a[i][j] < b[j])
                b[j] = a[i][j];
    }
    for (i = 0; i < m - 1; i++)
    {
        min = i;
        for (j = i + 1; j < m; j++)
{
            if (b[j] < b[min])
                min = j;
}
         if (min != i)
{
        for (j = 0; j < n; j++)
        {
            tmp = a[j][i];
            a[j][i] = a[j][min];
            a[j][min] = tmp;
        }
        tmp = b[i];
        b[i] = b[min];
        b[min] = tmp;
}
    }
    cout << "Changed array: " << endl;
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < m; j++)
            cout << setw(5) << a[i][j] << setw(5);
        cout << endl;
    }
    delete[] a;
    system("pause");
    return 0;
}