#include <iostream>
#include <iomanip>
#include <algorithm>

using namespace std;

const int nx = 4, ny = 5;
const int naff = 5;

void affiche ( double** tableau )
{
	for ( int j = 0; j < ny; j++ )
	{
		for ( int i = 0; i < nx; i++ )
		{
			cout << setw ( naff ) << tableau[j][i];
		}
		cout << endl;
	}
	cout << endl;
}

double** créer ( int tx, int ty )
{
	double** tableau = static_cast<double**> ( 0 );

	tableau = new double*[tx];
	// initialiser les ty pointeurs à 0 (NULL)
    std::fill_n( tableau, ty, static_cast<double*>( 0 ) );

	for ( int i = 0; i < ty; i++ )
	{
		tableau[i] = new double[tx];
	}

	return tableau;
}

int détruire ( double** tableau, int ty )
{
	for ( int i = 0; i < ty; i++ )
	{
		delete[] tableau[i];
	}
	delete[] tableau;

	return 0;
}

int main ()
{
	double** surface = créer ( nx, ny );;

	for ( int j = 0; j < ny; j++ )
	{
		for ( int i = 0; i < nx; i++ )
		{
			surface[j][i] = i*10 + j;
		}
	}

	cout << "Matrice d'entrée :" << endl;
	affiche ( surface );

	détruire ( surface, ny );

	system ( "pause" );
}