```cpp
#include<iostream>
using namespace std;
int main() {
int yu,money=0,cun=0,day=0;
for (int i = 1; i <= 12; i++) {
money+=300;
cin >> yu;
money -= yu;
cun += money / 100 * 100;
money %= 100;
if (money < 0){
day = i;
break;
}
}
if (day){
cout << 0-day << endl;
}
else{
cout << cun * 12 / 10 + money << endl;
}
return 0;
}
```
by yma_y_wma @ 2023-06-17 15:46:16
魔改了一下，已AC
求关！
by yma_y_wma @ 2023-06-17 15:47:05