// AlgorytmGaussa.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>

void b()
{
    const int n = 4;
    //double A[n][n] = { { 10, 1, 1, 1, 2 },{ 3, 20, 4, 2, 1 },{ 5, 1, 40, 9, 5 },{ 3, 0, 1, 10, 1 },{ 6, 2, 1, 1, 20 } };
    //double B[n] = { 15, 30, 60, 15, 30 };

    double A[n][n] = { { 1, 2, 3, 4 },{ 2, 5, 10, 15 },{ 3, 10, 20, 30 },{ 1, 5, 20, 30 } };
    double B[n] = { 10, 32, 63, 52 };

    for (int k = 0; k <= n - 2; k++)
    {
        double tmp = A[k][k];
        if (tmp == 0)
            break;
        else
        {

            for (int i = k; i <= n - 1; i++)
            {
                for (int j = k; j <= n - 1; j++)
                {
                    A[i][j] = A[i][j] - (A[i][k] * A[k][j] / tmp);
                }

                B[i] = B[i] - (A[i][k] * B[k] /tmp);
            }
        }
    }
    int p = 0;
}

int main()
{
    b();
    return 0;
}