第一次做蓝题，可是他不是蓝题

#include <iostream>
using namespace std;
int main(){
    int counter=0;
    double saved=0;
    int nowmoney=0;
    for (int i=0; i<12; i++){
        counter-=1;
        int mu;
        cin >> mu;
        nowmoney+=300;
        if (nowmoney<mu){
            cout << counter;
            return 0;
        }
        nowmoney-=mu;
        int tosavemoney=(nowmoney/100)*100;
        nowmoney-=tosavemoney;
        saved+=tosavemoney;
    }
    cout << saved*1.2+nowmoney;
}