就对了1、6、8测试点，求大佬指错

#include<bits/stdc++.h>
using namespace std;
int main (){
	int x = 0,y,a,b,q,ans = 0;
	for(int i = 1;i <= 12;i++){
		cin >> y;
		if(y > 300){
			if(x < y-300){
				cout << -i;
				return 0;
			}else{
				q = y-300;
				x = x - q;
			}
		}else{
			a = 300 - y;
			if(a > 100||a == 100){
				b = a % 100;
				a = a-b;
				ans = a / 100;//1
				b=ans * 100;
				x = 300 - b - y;
			}else{
				x += a;
			}//100
		}
	}
	x += ans*120;
	cout << x;
    return 0;
}