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 ……

Hi, coders. I welcome you to Like Shiyan Simulation Round 2. This round will be held on OJ Essential. As usual, you can take any 1h of your spare time. Hints: 1. Problems: 4 (100-100-50-50) 2. Time: 1h 3. Difficulty: Around Div2D 4. 1 from Atcoder,……

It's gonna be 2020 Chinese New Year. Seems someone is going to send a gift. The 2020 STG! Warning: Play Touhou first before playing this Story In Gensyoku it's going to be the Lunar New Year. Reimu is going to invite Nazrin as one of the moscots. B……