求助刚才模拟赛t1

#include<cmath>
#include<cstdio>
using namespace std;
int n,T,score=0;
int a[10],b[10];
int main()
{
	scanf("%d",&n);
	for(int i=1;i<=n;++i)
	{
		scanf("%d%d",&a[i],&b[i]);
		score+=100*b[i]/a[i];
	}
	scanf("%d",&T);
	if(score>=T)printf("Already Au.");
	else
	{
		for(int i=1;i<=n;++i)
		{
			if(a[i]==b[i])printf("NaN\n");
			else
			{
				int k=T-score;
				if(k/(100/a[i])<=a[i]-b[i])printf("%d\n",k/(100/a[i])+1);
				else printf("NaN\n");
			}
		}
	}
	return 0;
}
/*
7
100 100
20 20
20 10
25 13
20 20
25 16
20 6
509
*/