测试点里有商大于被除数的情况吗

#include<bits/stdc++.h>
using namespace std;
long long t,n,k,ans1,ans2,s;
int main()
{
	cin>>t;
	while(t--)
	{
		ans1=ans2=s=0;
		scanf("%lld%lld",&n,&k);
		if(k>=n)//这里应该是k>n
		{
			cout<<"0"<<endl;
			continue;
		}
		if(!k)
		{
			cout<<"1"<<endl;
			continue;
		}
		ans1=n/k;
		ans2=n/(k+1)+1;
		s=ans1-ans2+1;
		//if(s<=0)
			cout<<"0"<<endl;
		else
			cout<<s<<endl;//感觉没必要
	}
	return 0;
}