Contest Link If you haven't read the problems or tried to solve it yourself, don't read this. A - Clock Difficulty: d2b Hint The hour hand of the clock moves 0.5 degree per minute, the minute hand of the clock moves 6 degree per minute. Then it tur……

思考题 for 2020 DuiLian 二十年飞花不尽 一几度落月无穷 九州同乐 Of twenty years, the flower never withers In one eternity, the moon forever remains Enjoy it together It's 2020 soon. It's time for the biggest holiday - The Yuandan and the Chinese Ne……

思考题 about cheating Lottery Cheating Let's have some lottery! In this lottery system, a number string S and an array of integers A is predetermined. It is known that |A|=|S| and let's define A_0=0. Each user chooses a number string T(|T|=|S|). Th……

思考题 Times A shadow pokemon! Recently the famous game Pokemon SwordString was released. XGN, one of the biggest fan of Pokemon, decided to have a try. In each battle, your Pokemon can be seen as a string A and the enemy can be seen as a string B.……

思考题 in one sentence Yet Another Easy Problem Find any positive integer pair a,b so that (a+b)+(a+b)\mod k=n where k,n are given or -1 -1 if not found. Examples Input K=100 N=268 Output 200 34 Explain 200+34+(200+34)mod 100=234+34=268 Input K=100……

Solved! Difficulty: Div2E-Div2F If you prefer easier problem, please visit here 思考题 for dw Childish War (Hard) Miss. Broken Tail(Wei Duan) is the Math teacher of NFLS Class 8 Junior 3.She is a kind teacher. Miss. East(Fang Dong) is the Mat……

Solved! Difficulty: Div2D-Div2E If you prefer harder problem, please visit here 思考题 for dw Childish War (Easy) Miss. Broken Tail(Wei Duan) is the Math teacher of NFLS Class 8 Junior 3.She is a kind teacher. Miss. East(Fang Dong) is the Mat……

今天来到了rng_58的Training 2.难度是Div2. 首先一如既往的开始，我和XIZCM,ZZZYT,MK一起乘坐2路到达锁金村，在那之前和ZKY吃了西安面馆，同时读了题目。 RNG仍然先吃Pizzahut，dreamoon到场。 开始讲题，先统计过的人数（7，7，1，4，1，1）之后讲了4题，休息。 之后……

思考题 with NFLS teachers Husky Miss Husky (Shiqi Hao) is the Art teacher of NFLS Class 8 Junior 3. She is a kind teacher. But in fact, she is a spy working for NFLS. One day, she received the task to observe all the schools in Nanjing. There are N……

Carrott视角 警告：本篇文章含有辱骂出题人内容，请酌情观看。 16：30 ZKY直接从班主任手中夺来提前离校权吗，乘坐2路返回本部。在某E茶吃饭。 17：30 比赛正式开始，不断网，非常爽！ Fire 先看的这一题，难度1.00，非常简单的Dijkstra板子题，简单到让人感觉为出题……