上决╇ф的ACM

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传送门：点击打开链接Go to movies ⅡTime Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 84    Accepted Submission(s): 37Problem DescriptionLeLe

传送门：点击打开链接C. Registration systemtime limit per test5 secondsmemory limit per test64 megabytesinputstandard inputoutputstandard outputA new e-mail service "Berlandesk" is going to b

传送门：点击打开链接C. Bear and Prime Numberstime limit per test2 secondsmemory limit per test512 megabytesinputstandard inputoutputstandard outputRecently, the bear starte

传送门：http://codeforces.com/contest/339/problem/DD. Xenia and Bit Operationstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputXeni

传送门：点击打开链接GTY's gay friendsTime Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 562    Accepted Submission(s): 127Problem Description

传送门：点击打开链接B. Sereja and Suffixestime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputSereja has an array a, consisting of n intege

传送门：点击打开链接A. Greg and Arraytime limit per test1.5 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputGreg has an array a = a1, a2, ..., an and m ope

传送门：点击打开链接B. After Trainingtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputAfter a team finished their training session on Eur

传送门：http://codeforces.com/contest/527/problem/CC. Glass Carvingtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputLeoni

传送门：HDU5316MagicianTime Limit: 18000/9000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Problem DescriptionFantasy magicians usually gain their ability through one of three

传送门：http://codeforces.com/contest/580/problem/EE. Kefa and Watchtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputOne day Kefa th

传送门：HDU5454Excited DatabaseTime Limit: 1500/1000 MS (Java/Others)    Memory Limit: 65535/102400 K (Java/Others)Total Submission(s): 129    Accepted Submission(s): 26Problem Description

传送门B. Bribestime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputRuritania is a country with a very badly maintained road network, w

treeTime Limit: 16000/8000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others)Problem DescriptionGiven a rooted tree(node 1 is the root) with n nodes. The ithnode has a p

The LCIS on the TreeTime Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others)Problem DescriptionFor a sequence S1, S2, ... , SN, and a pair of integers (i, j)

Boring ClassTime Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Problem DescriptionMr. Zstu and Mr. Hdu are taking a boring class , Mr. Zstu comes up wit

Walk OutTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Problem DescriptionIn an n∗m maze, the right-bottom corner is the exit (position (n,m)

传送门：点击打开链接D. Palindrome Degreetime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputString s of length n is called k-palindrome, if

传送门：http://codeforces.com/contest/356/problem/AA. Knight Tournamenttime limit per test3 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard out

传送门：点击打开链接C. Dima and Staircasetime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputDima's got a staircase that consists of n stair

传送门：点击打开链接B. Misha and Changing Handlestime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputMisha hacked the Codeforces site. Then h

传送门：http://acm.hdu.edu.cn/showproblem.php?pid=2296Ring Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2412    Accepted Submission(s): 748

传送门：点击打开链接Buy TicketsTime Limit: 4000MS Memory Limit: 65536KTotal Submissions: 14191 Accepted: 7118DescriptionRailway tickets were difficult to buy around t

传送门：点击打开链接Gao the string!Time Limit: 2000/1000MS (Java/Others)Memory Limit: 128000/64000KB (Java/Others)SubmitStatisticNext ProblemProblem Descriptiongive you a string, please output the

传送门：点击打开链接DNA SequenceTime Limit: 1000MSMemory Limit: 65536KTotal Submissions: 12215Accepted: 4650DescriptionIt's well known that DNA

传送门：点击打开链接考研路茫茫——单词情结Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3929    Accepted Submission(s): 1147Problem Description背单词，

传送门：点击打开链接DNA repairTime Limit: 5000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1450    Accepted Submission(s): 792Problem DescriptionBiolog

传送门：点击打开链接Lost's revengeTime Limit: 15000/5000 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others)Total Submission(s): 3092    Accepted Submission(s): 813Problem DescriptionL

传送门：点击打开链接Who Gets the Most Candies?Time Limit: 5000MS Memory Limit: 131072KTotal Submissions: 10852 Accepted: 3371Case Time Limit: 2000MSDescriptionN

传送：点击打开链接D. Fox And Jumpingtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputFox Ciel is playing a game. In this game there is a

传送门：点击打开链接D. Misha and Permutations Summationtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputLet's define the sum of two permu

传送门点击打开链接D. Interesting Arraytime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputWe'll call an array of n non-negative integersa[

传送门：点击打开链接C. Little Girl and Maximum Sumtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputThe little girl loves the problems on

传送门：点击打开链接平衡树Time Limit: 4000/2000MS (Java/Others)Memory Limit: 128000/64000KB (Java/Others)SubmitStatisticNext ProblemProblem Description神奇的cxlove有一颗平衡树，其树之神奇无法用语言来描述 OrzOrz。 这棵树支持3种操作： 1

传送门：点击打开链接PostersTime Limit: 5000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 5003    Accepted Submission(s): 1154Problem DescriptionTed has

传送门：点击打开链接Sequence operationTime Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6493    Accepted Submission(s): 1933Problem Descripti

传送门：点击打开链接GearsTime Limit: 2 Seconds      Memory Limit: 65536 KB Bob has N (1 ≤ N ≤ 2*105) gears (numbered from 1 toN). Each gear can rotate clockwise or counterclockwise. Bob thinks tha

传送门：点击打开链接Wow! Such Sequence!Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 3392    Accepted Submission(s): 981Problem Descripti

传送门：点击打开链接Matching on ArrayTime Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 259    Accepted Submission(s): 62Problem DescriptionA