1行题解

#include<bits/stdc++.h>
using namespace std;int b,m,n;int main(){ for(int i=1;i<=12;i++){m+=300;cin>>b;if(m-b<0){cout<<"-"<<i;return 0;}m-=b;n+=m/100100;m%=100;} cout<<m+(n+n0.2);return 0;}