Find smallest & biggest elements of the given matrix

Program:

#include<stdio.h>
#include<conio.h>
void main()
{
    int mat[10][10];
    int i, j, row, col, small, big;
    clrscr();
    printf("Enter the order of the matrix : ");
    scanf("%d %d", &row, &col);
    printf("\nEnter the elements of the matrix : \n\n");
    for(i = 0; i < row; i++)
    for(j = 0; j < col; j++)
    scanf("%d", &mat[i][j]);
    big = mat[0][0];
    small = mat[0][0];
    for(i = 0; i < row; i++)
    {
        for(j = 0; j < col; j++)
        {
            if(mat[i][j] < small)
            small = mat[i][j];
            if(mat[i][j] > big)
            big = mat[i][j];
        }
    }
    printf("\nThe smallest element in the matrix is : %d\n\n",small);
    printf("The biggest element in the matrix is : %d", big);
    getch();
}

Output:

Enter the order of the matrix : 3 3
Enter the elements of the matrix :
4 5 6
9 7 8
1 2 3
The smallest element in the matrix is : 1
The biggest element in the matrix is : 9