#include<bits/stdc++.h> using namespace std; int main () { int m,k,g,p,ans=0,t=0; cin>>m>>k>>g>>p; if (m/p>0)t=m/p; while(k/2||t||g/4){ k+=t; g+=t; ans+=t; t=k/2+g/4; k=k%2; g=g%4; ...