原创 Friends and Enemies HDU - 5874
On an isolated island, lived some dwarves. A king (not a dwarf) ruled the island and the seas nearby, there are abu
2020-06-20 00:59:46
原创 Football Games HDU - 5873
A mysterious country will hold a football world championships—Abnormal Cup, attracting football teams and fans from
2020-06-20 00:59:46
原创 Codeforces 427 C. Checkposts
Your city has n junctions. There are m one-way roads between the junctions. As a mayor of the city, you have to ens
2020-06-20 00:59:45
19
原创 PIGS POJ - 1149
Mirko works on a pig farm that consists of M locked pig-houses and Mirko can’t unlock any pighouse because he doesn
2020-06-20 00:59:45
1
原创 Optimal Milking POJ - 2112
FJ has moved his K (1 <= K <= 30) milking machines out into the cow pastures among the C (1 <= C <= 200) cows. A se
2020-06-20 00:59:45
原创 shuoj_1559
1559: 無向圖的連通分支 Time Limit: 1 Sec Memory Limit: 128 MBSubmit: 783 Solved: 451 [Submit][Status][Web Board] Descriptio
2020-02-22 22:08:40
原创 ECNU-3260
袋鼠媽媽找孩子 Time limit per test: 1.5 seconds Time limit all tests: 10.0 seconds Memory limit: 256 megabytes 袋鼠媽媽找不到她
2020-02-22 22:08:29
原创 Sparse Graph HDU - 5876
In graph theory, the complementcomplement of a graph GG is a graph HH on the same vertices such that two distinct v
2020-02-22 22:08:29
原创 Drainage Ditches POJ - 1273
Every time it rains on Farmer John’s fields, a pond forms over Bessie’s favorite clover patch. This means that the
2020-02-22 22:08:29
原创 Information Graph CodeForces - 466E
There are n employees working in company “X” (let’s number them from 1 to n for convenience). Initially the employe
2020-02-22 22:08:29
原创 ECNU-3263
麗娃河的狼人傳說 Time limit per test: 1.0 seconds Time limit all tests: 1.0 seconds Memory limit: 256 megabytes 麗娃河是華師大著
2020-02-22 22:08:29
原创 shu_mj 的數據結構專場（二）
2333 這個專題還是挺基礎的 做完了大概線段樹入門？嗯。。。騙騙自己入門了吧23333 Problem A: 求個和 （shuoj1883） Description 給你一個長爲N 的序列，M 條詢問，每次問你[l, r] 區
2020-02-22 22:08:29
原创 Minimum Inversion Number HDU - 1394
The inversion number of a given number sequence a1, a2, …, an is the number of pairs (ai, aj) that satisfy i < j an
2020-02-22 22:08:29
原创 codeforces-519C
A and B are preparing themselves for programming contests. An important part of preparing for a competition is shar
2020-02-22 22:08:29
原创 退役了
沒去打EC其實早就算退役選手，但也等現在EC打完才真的感覺自己真的退役了吧。 我整個大學基本都在打比賽。這個比賽真的帶給了我很多。這比賽其實沒什麼用，大佬當遊戲打，菜雞打了個辣雞牌沒卵用。所以沒興趣的話還是別打了保平安吧。 今年打了兩場，
2018-12-16 20:05:08