HDU 5360 Hiking（优先队列）

Hiking

Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)
Total Submission(s): 492    Accepted Submission(s): 263
Special Judge

Problem Description

There are n soda conveniently labeled by 1,2,…,n. beta, their best friends, wants to invite some soda to go hiking. The i-th soda will go hiking if the total number of soda that go hiking except him is no less than li and no larger than ri. beta will follow the rules below to invite soda one by one:
1. he selects a soda not invited before;
2. he tells soda the number of soda who agree to go hiking by now;
3. soda will agree or disagree according to the number he hears.

Note: beta will always tell the truth and soda will agree if and only if the number he hears is no less than li and no larger than ri, otherwise he will disagree. Once soda agrees to go hiking he will not regret even if the final total number fails to meet some soda's will.

Help beta design an invitation order that the number of soda who agree to go hiking is maximum.

 

Input

There are multiple test cases. The first line of input contains an integer T, indicating the number of test cases. For each test case:

The first contains an integer n (1≤n≤105), the number of soda. The second line constains n integers  相关阅读:
[Luogu 3794]签到题IV
[JSOI 2015]最大公约数
[BZOJ 5123][Lydsy1712月赛]线段树的匹配
[BZOJ 5127][Lydsy1712月赛]数据校验
[Codeforces Educational Round 71]Div. 2
[NOIp 2018]all
[BZOJ 2134]单选错位
[hihoCoder 1384]Genius ACM
[POJ 3233]Matrix Power Series
[USACO 09FEB]Bullcow