思考题 long ago Chess Ninetail and Doragon are playing Global Chess on a chessboard with N*M grids. The left-upper corner is (1,1) and the right-lower corner is (N,M) The Global Chess goes as follows: Each player has some soldiers. Ninetail plays ……

Hi, coders! I, XGN, welcome you to LSS 4, the super easy contest. Contest Detail: Start at 2020/3/2 and deadline is the weekend after English Extra Exam is finished. Contest Duration: 1h Problem Count: 4 Score Distribution: 50+50+100+100 Difficult……

思考题 with song 75 There have been 73 heroes failing to rescue the princess, and the 74-th was killed by the princess. As the 75-th knight, you decided to become stronger so that you would survive the princess's attack. You are given a directed g……

LSS 1-3 has ended! If you don't know, it's a contest focused on fast hand speed. The problems are usually easy and neat with simple concept. Here are some results: Problem Tag Tag LSS1 LSS2 LSS3 A math math implementation B math dp dfs & s……

Readers, we present, the Ultimate Reading Comprehension Challenge! If you don't know what Reading Comprehension is, it's about you are given a passage, you read it and answer the question. Sounds neat, but this time we will something crazy! We'll g……

Hi, coders! I welcome you to LiShi Simulation Contest 3. Details of the contest: Tournament Time: 2020/2/13-2020/2/29 Place: Here Problem Count:3(100+100+100) Time: 1 Hour Difficulty: D2B-D2C Subtask: YES for all three problems! Characters: Ookami……

思考题 with anime Unlimited Fafnir After watching the famous anime Unlimited Fafnir, XGN got excited. So he decided to recreate the scene of fighting the Basilisk. This time, Yuu is going to do it himself. Let's suppose the world is a 2D plane. The……

2019-01-01 WN,ZKY,HDD,ZJS,XZM,XGN,HYK,ZXY,ZYD The First of HHS New Year Party. 2019-02-06 XGN The first HHS real 3D game Planet ZJS released 2019-04-04 XZM The blog site is up! 2019-04-14 XGN,SYR,JGH Orange Boy Can You Solve It Out? series starts 2……

思考题so late? Dazzit Again This is an easy version of OBCYSIO 28) You are given an integer sequence A of length N and another sequence B of length M. Then imagine a game: First, you choose exactly M different elements and arrange them, let's call ……

众所周知,Skype是hhs指定聊天工具。它界面简洁，功能多样贼tm卡 今天早上某人突发奇想想把过去的聊天记录全下下来，然后惊讶的发现有入口... 下载地址 申请下载，大概2h审批 出现 界面即可 里面是一个tar压缩包 解压后会出现一个叫"messages.json"的json文件 50M....……