- #include <iostream> 
- #include <iomanip> 
- #include <cmath> 
- using namespace std; 
-   
- int main() { 
- 	int n, r, sum = 0; 
- 	double S; 
- 	cin >> n >> r; 
- 	int *x = new int[n]; 
- 	for (int i = 0; i < n; i++) cin >> x[i]; 
- 	for (int i = 0; i < n; i++) sum += x[i]; 
- 	S = M_PI * r * r; 
- 	for (int i = 0; i < n; i++) cout << fixed << setprecision(9) << (S / sum) * x[i] << endl; 
- 	return 0; 
- } 
				I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8aW9tYW5pcD4KI2luY2x1ZGUgPGNtYXRoPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKaW50IG1haW4oKSB7CglpbnQgbiwgciwgc3VtID0gMDsKCWRvdWJsZSBTOwoJY2luID4+IG4gPj4gcjsKCWludCAqeCA9IG5ldyBpbnRbbl07Cglmb3IgKGludCBpID0gMDsgaSA8IG47IGkrKykgY2luID4+IHhbaV07Cglmb3IgKGludCBpID0gMDsgaSA8IG47IGkrKykgc3VtICs9IHhbaV07CglTID0gTV9QSSAqIHIgKiByOwoJZm9yIChpbnQgaSA9IDA7IGkgPCBuOyBpKyspIGNvdXQgPDwgZml4ZWQgPDwgc2V0cHJlY2lzaW9uKDkpIDw8IChTIC8gc3VtKSAqIHhbaV0gPDwgZW5kbDsKCXJldHVybiAwOwp9