C++题解

#include <bits/stdc++.h>
using namespace std;

inline void solve()
{
    cout << 10 * 3.141593 << endl << 3.141593 * 25 << endl << 4 * 125 * 3.141593 / 3;
}

int main()
{
    int t = 1;
    
    while(t--)
    {
        solve();
    }
    return 0;
}