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Computer Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1232 Accepted Submission(s): 597Problem Description A school bought the first com

Kingdom of Obsession Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 1009 Accepted Submission(s): 289Problem Description There is a kindom

（HDU 5938）Four OperationsTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 1151 Accepted Submission(s): 338Problem Description Little Ruins i

Information Disturbing Problem Description In the battlefield , an effective way to defeat enemies is to break their communication system. The information department told you that there are n enemy

Anniversary party Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 10356 Accepted Submission(s): 4366Problem Description There is going to

World is Exploding Problem Description Given a sequence A with length n,count how many quadruple (a,b,c,d) satisfies: a≠b≠c≠d,1≤a< b≤n,1≤c< d≤n,Aa< Ab,Ac>Ad.Input The input consists of multiple test

Divide the Sequence Problem Description Alice has a sequence A, She wants to split A into as much as possible continuous subsequences, satisfying that for each subsequence, every its prefix sum is no

Two Problem Description Alice gets two sequences A and B. A easy problem comes. How many pair of sequence A’ and sequence B’ are same. For example, {1,2} and {1,2} are same. {1,2,4} and {1,4,2} are n

Another Meaning As is known to all, in many cases, a word has two meanings. Such as “hehe”, which not only means “hehe”, but also means “excuse me”. Today, ?? is chating with MeiZi online, MeiZi sen

级密码 Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 4375 Accepted Submission(s): 1405Problem Description Ignatius花了一个星期的时间终于找到了传说中的宝藏,宝藏

Different Digits Time Limit: 10000/4000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1628 Accepted Submission(s): 470Problem Description Given a positive int

Graph Theory Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 346 Accepted Submission(s): 167Problem Description Little Q loves playing w

Easy Summation Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 675 Accepted Submission(s): 286Problem Description You are encountered wi

Coprime Sequence Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 557 Accepted Submission(s): 287Problem Description Do you know what is

Building Shops Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 701 Accepted Submission(s): 265Problem Description HDU’s n classrooms are

Automatic Judge Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 674 Accepted Submission(s): 272Problem Description Welcome to HDU to tak

胜利大逃亡(续) Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 8588 Accepted Submission(s): 3085Problem Description Ignatius再次被魔王抓走了(搞不懂他咋这么讨魔王喜

Pusher Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/65536 K (Java/Others) Total Submission(s): 1508 Accepted Submission(s): 571 Special JudgeProblem Description PusherBoy is an

Color the ball Time Limit: 9000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 19721 Accepted Submission(s): 9815Problem Description N个气球排成一排，从左到右依次编号为1,2

Bubble Sort P is a permutation of the integers from 1 to N(index starting from 1). Here is the code of Bubble Sort in C++.for(int i=1;i<=N;++i) for(int j=N,t;j>i;—j) if(P[j-1] > P[j])

Where Amazing Happens As the premier men’s professional basketball league in the world, the National Basketball Association (NBA) has witnessed many superstars, legendary teams and precious friendship

The All-purpose Zero Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 1950 Accepted Submission(s): 920Problem Description ?? gets an sequen

Mr. Frog’s Game One day, Mr. Frog is playing Link Game (Lian Lian Kan in Chinese). In this game, if you can draw at most three horizontal or vertical head-and-tail-connected lines over the empty grid

题目连接：http://acm.hdu.edu.cn/showproblem.php?pid=5924Mr. Frog’s Problem Problem Description One day, you, a clever boy, feel bored in your math class, and then fall asleep without your control. In your

Minimum’s Revenge Problem Description There is a graph of n vertices which are indexed from 1 to n. For any pair of different vertices, the weight of the edge between them is the least common multipl

Car Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 0 Accepted Submission(s): 0Problem Description Ruins is driving a car to participating

ArcSoft’s Office Rearrangement Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 0 Accepted Submission(s): 0Problem Description ArcSoft, Inc

FatMouse and Cheese Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 8705 Accepted Submission(s): 3653Problem Description FatMouse has stor

Phalanx Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1246 Accepted Submission(s): 617Problem Description Today is army day, but the se

FatMouse’s Speed Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 14760 Accepted Submission(s): 6502 Special JudgeProblem Description FatM

Auxiliary Set Problem Description Given a rooted tree with n vertices, some of the vertices are important.An auxiliary set is a set containing vertices satisfying at least one of the two conditions：∙

Basic Data Structure Time Limit: 7000/3500 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 1102 Accepted Submission(s): 290 Problem Description Mr. Frog learne

题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=5738 Eureka Time Limit: 8000/4000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 3059 Accepted Submission(s): 86

题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=5734 Acperience Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 1239 Accepted Submission(s)

It’s All In The Mind Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 1608 Accepted Submission(s): 749Problem Description Professor Zhang h

Keep On Movin Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 1040 Accepted Submission(s): 733Problem Description Professor Zhang has kind

Abandoned country Time Limit: 8000/4000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 4941 Accepted Submission(s): 1249Problem Description An abandoned countr

NecklaceTime Limit: 3000/1500 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 2705 Accepted Submission(s): 846Problem Description SJX has 2*N magic gems. N of th

tetrahedronProblem Description Given four points ABCD, if ABCD is a tetrahedron, calculate the inscribed sphere of ABCD.Input Multiple test cases (test cases ≤100).Each test cases contains a line of

GCD Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 3087 Accepted Submission(s): 1116Problem Description Give you a sequence of N(N≤100,0