注意题面看 luogu
https://www.luogu.org/problemnew/show/P1421
#include<bits/stdc++.h> using namespace std; int main() { double sum=0; int a,b; cin>>a>>b; sum=b; sum/=10; sum+=a; sum/=1.9; a=sum; sum=a; cout<<sum; }
原文：https://www.cnblogs.com/OI-xyf/p/10987028.html