习惯与规则决定命运

Bipartite GraphTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 577    Accepted Submission(s): 154Problem DescriptionSoda has a bipar

Sorting It All OutTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 24092 Accepted: 8321DescriptionAn ascending sorted sequence of distinct values is one in

ArbitrageTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 12918 Accepted: 5441DescriptionArbitrage is the use of discrepancies in currency exchange rates t

D. Nudist Beachtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputNudist Beach is planning a military operati

C. New Languagetime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputLiving in Byteland was good enough to begin

Graph ConnectivityTime Limit: 8000MS Memory Limit: 131072KTotal Submissions: 3381 Accepted: 883Case Time Limit: 3000MSDescriptionLet us consider an undirect

C. CNF 2time limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard output'In Boolean logic, a formula is in conjunctive normal form (CNF) or clausal norma

D. Mr. Kitayuta's Technologytime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputShuseki Kingdom is the world's

Rikka with TreeTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 165    Accepted Submission(s): 85Problem DescriptionAs we know, Rikka

Rikka with Graph IITime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 367    Accepted Submission(s): 90Problem DescriptionAs we know, R

题目2 : 赛车时间限制:20000ms单点时限:1000ms内存限制:256MB描述幻想乡有一个赛车场。赛车场里有N个地点。同时地点之间还有单向的道路存在。这些道路使得赛车场形成了一个外向树的结构。也就是说，道路将这N个地点连成了一个有根树。并且所有的边都是从父亲指向孩子的。由于幽香喜欢刺激，每次她去赛车场都会从根节点出发，选择

D. Tree Requeststime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputRoman planted a tree consisting of n verti

E. Breaking Good time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Breaking Good is a new video game which a lot of gamers want to have. The

D. Vitaly and Cycle time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output After Vitaly was expelled from the university, he became interested in

C. Misha and Foresttime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputLet's define a forest as a non-directed

Agri-NetTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 33106 Accepted: 13191DescriptionFarmer John has been elected mayor of his town! One of his campaig

FroggerTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 20940 Accepted: 6799DescriptionFreddy Frog is sitting on a stone in the middle of a lake. Suddenly

Victor and WorldTime Limit: 4000/2000 MS (Java/Others)    Memory Limit: 262144/131072 K (Java/Others)Total Submission(s): 132    Accepted Submission(s): 66Problem DescriptionAfter trying h

Problem C. gCampusThis contest is open for practice. You can try every problem as many times as you like, though we won't keep track of which problems you solve. Read the Quick-Start Guide t

Labeling BallsTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 9028 Accepted: 2444DescriptionWindy has N balls of distinct weights from 1 unit to N uni

System EngineerTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 491 Accepted: 208DescriptionBob is a skilled system engineer. He is always facing challengi

Popular CowsTime Limit: 2000MS Memory Limit: 65536KTotal Submissions: 20718 Accepted: 8438DescriptionEvery cow's dream is to become the most popular cow in the herd

The Shortest Path in Nya GraphTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1279 Accepted Submission(s): 286Problem DescriptionThis i

Stockbroker GrapevineTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 23350 Accepted: 12787DescriptionStockbrokers are known to overreact to rumours. You h

昂贵的聘礼Time Limit: 1000MS Memory Limit: 10000KTotal Submissions: 31623 Accepted: 8930Description年轻的探险家来到了一个印第安部落里。在那里他和酋长的女儿相爱了，于是便向酋长去求亲。酋长要他用10000个金币作为聘礼才答应把女儿嫁给他。探

D. New Year Santa Networktime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputNew Year is coming in Tree World!

Currency ExchangeTime Limit: 1000MS Memory Limit: 30000KTotal Submissions: 16184 Accepted: 5626DescriptionSeveral currency exchange points are working in our city.

SPFTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 5103 Accepted: 2347DescriptionConsider the two networks shown below. Assuming that data moves around th

Burning BridgesTime Limit: 5 Seconds Memory Limit: 32768 KB Ferry Kingdom is a nice little country located on N islands that are connected by M bridges. All bridges are very beautiful and ar

Warm upTime Limit: 10000/5000 MS (Java/Others) Memory Limit: 65535/65535 K (Java/Others)Total Submission(s): 2530 Accepted Submission(s): 592Problem Description　　N planets are connected by

WormholesTime Limit: 2000MS Memory Limit: 65536KTotal Submissions: 24864 Accepted: 8869DescriptionWhile exploring his many farms, Farmer John has discovered a num

B. New Year Permutationtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputUser ainta has a permutation p1, p2