Skochik4

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

int main()
{
    int n, m, i, j, temp, exnum, min, min_i, min_j, ex_i, ex_j;

    printf("n = ");
    scanf("%d", &n);
    printf("m = ");
    scanf("%d", &m);

    int **x;

    x = (int **)malloc(n*sizeof(int *));
    for (i = 0; i< n; i++)
        x[i] = (int*)malloc(m*sizeof(int));

    for (i = 0; i < n; i++)
    {
        for (j = 0; j < m; j++)
        {
            printf("x[%d][%d] = ", i, j);
            scanf("%d", &x[i][j]);
        }
    }

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

    printf("Enter the number for exchange: ");
    scanf("%d", &exnum);

    for (i = 0; i < n; i++)
    {
        for (j = 0; j < m; j++)
            if (x[i][j] == exnum)
                {
                    ex_i = i;
                    ex_j = j;
                    break;
                }
        if (j < m)
            break;
    }
    if (i == n)
    {
        printf("Number does not exist");
        return 0;
    }

    min = x[0][0];
    for (i = 0; i < n; i++)
        for (j = 0; j < m; j++)
            if (min > x[i][j])
            {
                min = x[i][j];
                min_i = i;
                min_j = j;
            }

    printf("min = %d\n", min);

    temp = x[min_i][min_j];
    x[min_i][min_j] = x[ex_i][ex_j];
    x[ex_i][ex_j] = temp;

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

    return 0;
}