B. Interesting drink1100 / 二分

Posted 2021-11-11 幽殇默

https://codeforces.com/problemset/problem/706/B

#include<bits/stdc++.h>
using namespace std;
const int N=1e5+10;
int a[N],n,m,x;
int main(void)
{
	cin>>n;
	for(int i=0;i<n;i++) cin>>a[i];
	sort(a,a+n);
	cin>>m;
	while(m--)
	{
		cin>>x;
		int l=0,r=n-1;
		while(l<r)
		{
			int mid=l+r+1>>1;
			if(a[mid]<=x) l=mid;
			else r=mid-1;
		}
		if(a[l]>x) cout<<0<<endl;
		else cout<<l+1<<endl;
	}
	return 0;
}