C :

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

int main()
{
	int i,j,n,a[6][6];
	scanf ("%d",&n);
	for (i=0;i<n;i++)
	for (j=0;j<n;j++)
		scanf ("%d",&a[i][j]);
	int max=a[0][0];
	int I=0,J=0;
	for (i=0;i<n;i++)
	for (j=0;j<n;j++)
		if (max<a[i][j])
		{
			max=a[i][j];
			I=i;
			J=j;
		}
	printf ("%d %d %d\n",max,++I,++J);
	return 0;
}

C++ :

#include<iostream>
 
using namespace std;
 
int main() {
    int n, max, index_r = 0, index_c = 0;
    int a[6][6];
    cin >> n;
 
    cin >> a[0][0];
    max = a[0][0];
 
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (i == 0 && j == 0)
                continue;
            cin >> a[i][j];
            if (a[i][j] >= max) {
                max = a[i][j];
                index_r = i;
                index_c = j;
            }
        }
    }
    cout << max << " " << index_r + 1 << " " << index_c + 1;
    return 0;
}