Void _tmain(int argc, _tchar* argv[])

{

printf ("frolov Oleg, Zada4a 20.");

cin.get();

system ("cls");

double h, x, y, end;

h=0.01;

y=20;

x=0;

end=20;

cout<<x<<"\t";

cout<<y<<"\t";

cout<<f(x,y)<<endl;

do

{

y= y + h* f(x,y);

x = x+h;

cout<<x<<"\t";

cout<<y<<"\t";

cout<<f(x,y)<<endl;

}

while (x<end);

cin.get();

cin.get();

}