原创 E - Cycling HDU - 2363
You want to cycle to a programming contest. The shortest route to the contest might be over the tops of some mountains
2020-07-05 06:06:11
原创 hdu6053TrickGCD(莫比烏斯反演)
參考：http://blog.csdn.net/u013632138/article/details/52250567 http://blog.csdn.net/xlzhang223/article/details/
2020-07-05 06:06:11
原创 F - Pagodas HDU - 5512
nn pagodas were standing erect in Hong Jue Si between the Niushou Mountain and the Yuntai Mountain, labelled from 11
2020-07-05 06:06:11
原创 1401 有趣的旅行
有N個城市，每個城市編號時從0到(N - 1)，它們靠(N - 1)條雙向道路相連。任意兩個不同地城市之間都有一條唯一的路徑相連。每個城市還有一個吸引力值，吸引力值越大的城市代表它越有趣，就越能吸引人。你要決定一次旅行，滿足如下條件
2020-07-05 06:06:11
原创 H(1946): A Rational Sequence
Description An infinite full binary tree labeled by positive rational numbers is defined by: The label of the root is
2020-02-23 03:09:55
原创 E - RealPhobia HDU - 4180
Bert is a programmer with a real fear of floating point arithmetic. Bert has quite successfully used rational numbers
2020-02-23 03:09:55
原创 F - Level up HDU - 3954
Level up is the task of all online games. It's very boooooooooring. There is only level up in those games, except leve
2020-02-23 03:09:55
原创 K - Co-prime HDU - 4135
Given a number N, you are asked to count the number of integers between A and B inclusive which are relatively prime t
2020-02-23 03:09:55
原创 M - How many integers can you find HDU - 1796
Now you get a number N, and a M-integers set, you should find out how many integers which are small than N, that they
2020-02-23 03:09:55
原创 G - Domino Effect POJ - 1135
Did you know that you can use domino bones for other things besides playing Dominoes? Take a number of dominoes and bui
2020-02-23 03:09:55
原创 水羣
總所周知，水羣是一件很浪費時間的事，但是其實在水羣這件事中，也可以找到一些有意思的東西。 比如現在，bx2k就在研究怎樣水錶情的問題。 首先，bx2k在對話框中輸入了一個表情，接下來，他可以進行三種操作。 第一種，是全選複製，把所有
2020-02-23 03:09:55
原创 J - 2016 CSU - 1803
給出正整數 n 和 m，統計滿足以下條件的正整數對 (a,b) 的數量： 1. 1≤a≤n,1≤b≤m; 2. a×b 是 2016 的倍數。 Input 輸入包含不超過 30 組數據。 每組數據
2020-02-23 03:09:55
原创 1444 破壞道路
1444 破壞道路 題目來源： CodeForces 基準時間限制：1.5 秒 空間限制：131072 KB 分值: 80 難度：5級算法題 收藏 關注 在某一個國家，那兒有n個城市，他們通過m條雙向道
2020-02-23 03:09:55
原创 Knapsack in a Globalized World
Problem description Globalization stops at nothing, not even at the good old honest profession of a burglar. Nowadays
2020-02-23 03:09:55
原创 D - Theseus and labyrinth CodeForces - 676D
Theseus has just arrived to Crete to fight Minotaur. He found a labyrinth that has a form of a rectangular field of siz
2020-02-23 03:09:55