186D - Mushroom Scientists - CodeForces Solution

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

int main() {
    int s, a, b, c; cin >> s >> a >> b >> c; 

    if(a + b + c == 0) {
        cout << 0 << ' ' << 0 << ' ' << 0 << '\n'; 
        return 0;
    }

    double frac = (double) s / (double)(a + b + c); 
    double x = frac * (double) a; 
    double y = frac * (double) b; 
    double z = frac * (double) c; 

    cout << setprecision(20) << x << " " <<  y << " " << z << '\n'; 
}