#include <stdio.h>
#include <math.h>
#include <stdlib.h>

int main()
{
    int K[5][5];
    int i, j, max = 40, min = -20;
    int iMax = 0, jMax = 0, iMin = 0, jMin = 0;
    int tmp;

    for (i = 0; i < 5; i++)
    {
        for (j = 0; j < 5; j++)
        {
            K[i][j] = min + rand() % (max + 1 - min);
            printf("%4d ", K[i][j]);
        }
        printf("\n");
    }

    for (i = 0; i < 5; i++)
    {
        for (j = 0; j < 5; j++)
        {
            if (K[i][j] < K[iMin][jMin])
            {
                iMin = i;
                jMin = j;
            }
            if (K[i][j] > K[iMax][jMax])
            {
                iMax = i;
                jMax = j;
            }
        }
    }

    tmp = K[0][0];
    K[0][0] = K[iMin][jMin];
    K[iMin][jMin] = tmp;
    tmp = K[4][4];
    K[4][4] = K[iMax][jMax];
    K[iMax][jMax] = tmp;
    printf("\n\n");

    for (i = 0; i < 5; i++)
    {
        for (j = 0; j < 5; j++)
        {
            printf("%4d ", K[i][j]);
        }
        printf("\n");
    }

    return 0;
}