c2

1sem/adaptation courses/03/10.cpp

@@ -0,0 +1,25 @@
+// 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;
+}