#include <iostream>
#include<cmath>
using namespace std;
int main()
{
int i, j, n, s;
cout<<"Podaj n.. ";
cin>>n;
double C[n][n+1];
double X[n];
double suma;
for(int i=0;i<n;i++)
{
for(int j=0;j<=n;j++)
{
cout<<"C["<<i<<"]["<<j<<"]";
cin>>C[i][j];
}
}
for(int s=0;s<n-1;s++)
{
for(int i=s+1;i<n;i++)
{
for(int j=s+1;j<n+1;j++)
{
C[i][j]=C[i][j]-((C[i][s]*C[s][j])/C[s][s]);
}
}
}
X[n-1]=C[n-1][n]/C[n-1][n-1];
for(int i=n-2;i>=0;i--)
{
suma=0;
for(int s=i+1;s<n;s++)
{
suma=suma+(C[i][s]*X[s]);
}
X[i]=(C[i][n]-suma)/C[i][i];
}
for(int i=0;i<n;i++)
{
if(abs(X[i])<0.005) X[i]=0;
cout<<X[i]<<endl;
}
}
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