الرئيسية
Weekly Contest #01, problem: (B) Another Brick In The Wall, Accepted, #
- الكود:
#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
float n;
cin>>n;
n=((n*n)*(0.1591549431));// n=((n*n)*(0.1592356687898089));
cout << fixed << setprecision(2) << n;
return 0;
}
