【codeforces】706B—Interesting drink

今天药忘吃喽~ 2022-09-25 08:18 27阅读 0赞

B. Interesting drink

time limit per test

2 seconds

memory limit per test

256 megabytes

input

standard input

output

standard output

Vasiliy likes to rest after a hard work, so you may often meet him in some bar nearby. As all programmers do, he loves the famous drink "Beecola", which can be bought in *n* different shops in the city. It's known that the price of one bottle in the shop *i* is equal to *x**i* coins.

Vasiliy plans to buy his favorite drink for *q* consecutive days. He knows, that on the *i*\-th day he will be able to spent *m**i* coins. Now, for each of the days he want to know in how many different shops he can buy a bottle of "Beecola".

Input

The first line of the input contains a single integer *n* (1 ≤ *n* ≤ 100 000) — the number of shops in the city that sell Vasiliy's favourite drink.

The second line contains *n* integers *x**i* (1 ≤ *x**i* ≤ 100 000) — prices of the bottles of the drink in the *i*\-th shop.

The third line contains a single integer *q* (1 ≤ *q* ≤ 100 000) — the number of days Vasiliy plans to buy the drink.

Then follow *q* lines each containing one integer *m**i* (1 ≤ *m**i* ≤ 109) — the number of coins Vasiliy can spent on the *i*\-th day.

Output

Print *q* integers. The *i*\-th of them should be equal to the number of shops where Vasiliy will be able to buy a bottle of the drink on the *i*\-th day.

Example

input

5
    3 10 8 6 11
    4
    1
    10
    3
    11

output

0
    4
    1
    5

Note

On the first day, Vasiliy won't be able to buy a drink in any of the shops.

On the second day, Vasiliy can buy a drink in the shops 1, 2, 3 and 4.

On the third day, Vasiliy can buy a drink only in the shop number 1.

Finally, on the last day Vasiliy can buy a drink in any shop.

用二分和树状数组均可。

二分做法：

#include<cstdio>
    #include<iostream>
    #include<algorithm>
    #include<cstring>
    using namespace std;
    const int N = 1e5+5;
    int a[N];
    int main() {
    	int n;
    	while(scanf("%d",&n)!=EOF) {
    		for(int i=0; i<n; i++) {
    			scanf("%d",&a[i]);
    		}
    		int q,num;
    		scanf("%d",&q);
    		sort(a,a+n);
    		while(q--) {
    			scanf("%d",&num);
    			int ans=upper_bound(a,a+n,num)-a;
    			printf("%d\n",ans);
    		}
    	}
    	return 0;
    }

树状数组做法：

#include<cstdio>
    #include<iostream>
    #include<cmath>
    #include<cstring>
    #include<algorithm>
    using namespace std;
    const int N = 100000+10;
    int C[N];
    int lowbit(int x) {
    	return x&(-x);
    }
    void add(int t,int x,int nn) {
    	while(t<=nn) {
    		C[t]=C[t]+x;
    		t=t+lowbit(t);
    	}
    }
    int Sum(int h) {
    	int s=0;
    	while(h>0) {
    		s=s+C[h];
    		h-=lowbit(h);
    	}
    	return s;
    }
    int main() {
    	int n;
    	int nn=100000;
    	while(scanf("%d",&n)!=EOF) {
    		memset(C,0,sizeof(C));
    		for(int i=0; i<n; i++) {
    			int t;
    			scanf("%d",&t);
    			add(t,1,nn);
    		}
    		int q;
    		scanf("%d",&q);
    		while(q--) {
    			int h;
    			scanf("%d",&h);
    			if(h>100000) h=100000;
    			printf("%d\n",Sum(h));
    		}
    	}
    	return 0;
    }

[题目地址：http://codeforces.com/problemset/problem/706/B][http_codeforces.com_problemset_problem_706_B]

[http_codeforces.com_problemset_problem_706_B]: http://codeforces.com/problemset/problem/706/B