#include <iostream>
using namespace std;

int main()
{
    int *budget = new int[12];
    int balance = 0;
    int deposit = 0;
    int liabilities;

    for (int i = 0; i < 12; i++)
    {
        cin >> budget[i];
        balance = 300 - budget[i] + balance;

        if (balance < 0)
            liabilities = i + 1;

        int n = 0;
        n = balance / 100;
        if (n > 0)
        {
            balance -= n * 100;
            deposit += n * 100;
        }
    }

    if (liabilities != 0)
        cout << (-liabilities);
    else
        cout << ((float)deposit * 1.2 + balance);

    return 0;
}

求大佬帮我看看