C/C++ :: 2D Arrays Function - Largest Square?

In this assignment, you are required to write a function called largest square. Your function should take a 2 dimensional array, 2 integers which represent the number of rows and columns in the array, and prints out a 2 X 2 array which represents the largest square in the array. The largest square means the square for which the sum of its elements is the greatest in the array. Submit your function in a file called largestSquare.c

Example: Given the array 1 2 3 4

5 6 7 8

9 10 11 12 the output should be 7 8

11 12

Example 2: Given the array 8 2 6

3 7 3

6 1 1 the output should be 8 2

3 7

The prototype of your function is void largestSquare(int[rows][columns], int rows, int columns).

Am I anywhere close with what I've started?

//
// main.c
// largestsquare
//

#include <stdio.h>
#include <stdlib.h>
int main(int argc, const char * argv[]) {
int rows, columns;

[Code] ...