Matrix creation and outputting it to the screen

[vsvld18]

Hello! I was trying to create to functions one to create matrix and other is to output it. User needs to enter N, which is the size of the matrix, but by some reason in side of a function N changes to some other random value and I totally cannot figure out why does this happen. Thank you!

#include <iostream>
#include <math.h> 
#include <stdlib.h>
#include <time.h>   
using namespace std;

void MatrixCreator (int a[][1]);
void MatrixOutputer (int a[][1]);

int NxN[1][1];
int j,i,N;

int main ()
{
	
	MatrixCreator (NxN);
	cout << "Creation is done\n";
	MatrixOutputer (NxN);
	cout << "Output is out\n";
	return 0;
}

void MatrixCreator (int a[][1])
{
	srand (time(NULL));
	cout << "Please enter N - size of desired matrix\nN = ";
	cin >> N;
	for (int i = 0; i < N; i++)
	{
		for(int j = 0; j < N; j++)
		{
			NxN [i][j] = rand() % 20 + (-10);
			
		}
	}
	cout << N << endl;
}

void MatrixOutputer (int a[][1])
{
	cout << N << endl;
	for (int i = 0; i < N; i++)
	{
		for(int j = 0; j < N; j++)
		{
			cout << "[" << a [i][j] << "] ";
		}
		cout << "\n";
	}
}

[Hengry]

line 32: change it to pass the parameter

I would suggest you to use a vector since the size of the array is arbitrary.