UPC/1sem/adaptation courses/03/10.cpp
2019-11-18 11:02:11 +07:00

25 lines
No EOL
498 B
C++

// ac_3_10.cpp
// Горбацевич Андрей
#include <iostream>
#include <cmath>
using namespace std;
bool in_D(double x, double y)
{
double R = x*x + y*y;
bool up = (y >= 0);
bool l = (x <= 0);
bool r = (x >= 0);
bool fp = l and (R <= 1);
bool sp = r and (R >= 0.36) and (R <= 1);
return up and (fp or sp);
}
int main()
{
double x, y;
cout << "x, y >>>";
cin >> x >> y;
double P = (in_D(x, y)? x+y : 0 );
cout << "P(x,y)= " << P << endl;
}