using namespace std;
Void main ()
{
Int I=0, j=0, k, n, sum=0;
Cout<& lt;" Enter the number of unknowns, ";
Cin> n;
A=new double double * * * (n + 1),
for(i=0; i<=n; I++)
{
A [I]=new double [n + 1);
}
Double * b=new double [n + 1);
Cout<& lt;" Each line input of the coefficient matrix of linear equations and the equal sign on the right side of the: "& lt;
for(i=1; i<=n; I++)
{
For (j=1; j<=n; J++)
{
Cin> A, [I] [j].
}
Cin> B [I];
}
K=1;
While (1)
{
For (I=k + 1; i<=n; I++)
{
A [I] [k]=[I] a [k]/a, [k] [k].
}
For (I=k + 1; i<=n; I++)
{
For (j=k + 1; j<=n; J++)
{
A [I] [j]=[I] a [j] - [I] a [k] * a, [k] [j].
}
B=b [I] - [I] a [I] [k] * b [k].
}
If (k! K++=(n - 1));
The else break;
}
B [n] [n]=b/a, [n] [n].
For (I=n - 1; I>=1; I -)
{
For (j=I + 1; j<=n; J++)
{
B -=[I] a [I] [j] * b [j];
}
[I] b=(1/a [I] [I]) * b [I];
Sum=0;
}
for(i=1; i<=n; I++)
{
Cout<& lt;" X "& lt;