CF 706B 简单二分,水

1、CF 706B  Interesting drink

2、链接:http://codeforces.com/problemset/problem/706/B  

3、总结:二分

题意:给出n个数,再给出q个mi,每次求n个数里有多少个数<=mi 

#include<iostream>
#include<cstring>
#include<cmath>
#include<queue>
#include<algorithm>
#include<cstdio>
using namespace std;
#define LL long long
#define INF 0x3f3f3f3f

const int N=100100;
int x[N];

int main()
{
    int n,q,m;
    while(~scanf("%d",&n))
    {
        for(int i=1;i<=n;i++)
            scanf("%d",&x[i]);
        sort(x+1,x+n+1);

        scanf("%d",&q);
        for(int i=0;i<q;i++)
        {
            scanf("%d",&m);
            int l=1,r=n,mid;
            while(l<=r){
                mid=(l+r)/2;
                if(m<x[mid]){
                    r=mid-1;
                }else if(m>=x[mid]){
                    l=mid+1;
                }
            }

            cout<<r<<endl;
        }

    }

    return 0;
}
View Code

 

posted @ 2016-08-13 16:25  v9fly  阅读(230)  评论(0编辑  收藏  举报