tree Time Limit: 8000ms Memory Limit: 262144KB This problem will be judged on HDU. Original ID: 539064-bit integer IO format: %I64d      Java class name: Main   Given a rooted tree(node 1 is the root) with n nodes. The ithnode has a positive value vi…

2015 UESTC Winter Training #8 The 2011 Rocky Mountain Regional Contest Regionals 2011 >> North America - Rocky Mountain 开始时貌似是UVAlive挂了,无论交什么都WA,后来转战HDU 这次水题比较多,其中B题据说有更加高级的方法. G题WA了两发,才发现竟然没有输出Case!!! 未完成:D F H I J A - Iterated Difference 水题,模拟迭代即可…

2015 UESTC Winter Training #7 2010-2011 Petrozavodsk Winter Training Camp, Saratov State U Contest 据说这套题写出3题就是金牌水平了... Problem D. Group Stage 足球比赛,现在有n(2<= n <=100)支球队.要从中选拔m(1<= m <=n-1)支球队,每支球队互相比赛一场,即比赛n*(n-1)/2场,胜者得3分,平局各得1分.最后从大到小列出排名,如果有…

Root Time Limit: 30000/15000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 34    Accepted Submission(s): 6 Problem Description Given a number sum(1≤sum≤100000000),we have m queries which contains a pair (xi,yi) a…

官方解题报告:http://bestcoder.hdu.edu.cn/blog/2015-multi-university-training-contest-6-solutions-by-zju/ 表示很难看....orz 1003题      链接:http://acm.hdu.edu.cn/showproblem.php?pid=5355 Cake Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K…

Hiking Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 97    Accepted Submission(s): 56 Special Judge Problem Description There are n soda conveniently labeled by 1,2,-,n. beta, their best fr…

OO's Sequence                                                          Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)                                                                                             T…

Tricks Device Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 389    Accepted Submission(s): 100 Problem Description Innocent Wu follows Dumb Zhang into a ancient tomb. Innocent Wu's at the ent…

CRB and Tree                                                             Time Limit: 8000/4000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)                                                                                            To…

I Wanna Become A 24-Point Master Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 60    Accepted Submission(s): 16 Special Judge Problem Description Recently Rikka falls in love with an old but…

CRB and Apple Time Limit: 12000/6000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 421    Accepted Submission(s): 131 Problem Description In Codeland there are many apple trees.One day CRB and his girlfriend decide…

CRB and Queries Time Limit: 12000/6000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 533    Accepted Submission(s): 125 Problem DescriptionThere are N boys in CodeLand.Boy i has his coding skill Ai.CRB wants to k…

Just A String Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 643    Accepted Submission(s): 182 Problem Descriptionsoda has a random string of length n which is generated by the following alg…

Easy Sequence Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 766    Accepted Submission(s): 208 Problem Descriptionsoda has a string containing only two characters -- '(' and ')'. For every c…

Leader in Tree Land Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 447    Accepted Submission(s): 185 Problem DescriptionTree land has n cities, connected by n−1 roads. You can go to any city f…

Expression Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 175    Accepted Submission(s): 95 Problem Description Teacher Mai has n numbers $a_1,a_2,\dots,a_n$ and $n-1$ operators ("+","…

The sum of gcd Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 641    Accepted Submission(s): 277 Problem Description  You have an array A with the length of $n$ \[Let\quad f(l,r) = \sum_{i = l}…

Yu-Gi-Oh! Time Limit: 2000ms Memory Limit: 65536KB This problem will be judged on HDU. Original ID: 538364-bit integer IO format: %I64d      Java class name: Main   "Yu-Gi-Oh!", also known as "Dueling Monsters", is a popular trading ca…

The path Time Limit: 2000ms Memory Limit: 65536KB This problem will be judged on HDU. Original ID: 538564-bit integer IO format: %I64d      Java class name: Main Special Judge   You have a connected directed graph.Let d(x) be the length of the shorte…

Danganronpa Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 318    Accepted Submission(s): 176 Problem Description 给你n个A串,m个B串,对每个A串,询问,这些B串们在该A串中一共出现过多少次 Input 样例个数 n m 接下来n个A串 接下来m个B串 Output…

Zero Escape Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 407    Accepted Submission(s): 190 Problem Description Zero Escape, is a visual novel adventure video game directed by Kotaro Uchiko…

Boring Class Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 900    Accepted Submission(s): 247 Problem Description Mr. Zstu and Mr. Hdu are taking a boring class , Mr. Zstu comes up with a prob…

Hotaru's problem Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 907    Accepted Submission(s): 322 Problem Description Hotaru Ichijou recently is addicated to math problems. Now she is playing…

Segment Game Time Limit: 3000/1500 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 446    Accepted Submission(s): 95 Problem Description Lillian is a clever girl so that she has lots of fans and often receives gifts…

Mahjong tree Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 388    Accepted Submission(s): 125 Problem Description Little sun is an artist. Today he is playing mahjong alone. He suddenly feels…

The shortest problem Time Limit: 3000/1500 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 346    Accepted Submission(s): 167 Problem Description In this problem, we should solve an interesting game. At first, we hav…

Gray code Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 129    Accepted Submission(s): 68 Problem Description The reflected binary code, also known as Gray code after Frank Gray, is a binary n…

Annoying problem Time Limit: 16000/8000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 1006    Accepted Submission(s): 330 Problem Description Coco has a tree, whose nodes are conveniently labeled by 1,2,…,n, which…

The Goddess Of The Moon Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 943    Accepted Submission(s): 426 Problem Description Chang’e (嫦娥) is a well-known character in Chinese ancient mythology…

In Touch Time Limit: 8000/4000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 578    Accepted Submission(s): 160 Problem Description There are n soda living in a straight line. soda are numbered by 1,2,…,n from le…