津津的储蓄计划

#include<iostream>
#include<stdio.h>
#include<cmath>
#include<string>
#include<algorithm>
using namespace std;
int main()
{
int cunkuan = 0;
int hand=0;
for (int i = 1; i < 13; i++)
{
int yusuan;
cin >> yusuan;
hand += 300;
if (hand<yusuan)
{
cout << "-" << i << endl;
system("pause");
return 0;
}
else{
hand -= yusuan;
cunkuan += hand - hand % 100;
hand = hand % 100;
}
}
cout << hand + cunkuan*12.0 / 10 << endl;
system("pause");
return 0;
}