Envío 1287

Código

#include <iostream>
using namespace std;



bool isMagic()
{
   int n;
	cin >> n;
	int square[n][n];

	int d1 = 0;
	int d2 = 0;

	
	for(int i=0;i<n;i++)
	{
		for(int j=0;j<n;j++)
		{
			cin >> square[i][j];
			
		}
	}
	
	int want = 0;
	for(int i=0;i<n;i++)
		want += square[0][i];
	
	for(int i=0;i<n;i++)
	{
		int sumC = 0;
		int sumF = 0;
		for(int j=0;j<n;j++)
		{
			sumC += square[j][i];
			sumF += square[i][j];
			if(i == j)d1 += square[i][j];
			if(i == (n-1-j))d2 += square[i][j];
		}
		if(sumC != sumF || sumF != want )
			return false;
	}
	
	
	if(d1 != d2)
	{
		return false;
	}
	

	return true;
}

int main()
{
	bool resp = isMagic();
	if(resp)
		cout <<  "Yes" << endl;
	else
		cout <<  "No" << endl;
	
	
}