摘要： City Upgrades Time limit: 1000 msMemory limit: 128 MB City Upgrades Time limit: 1000 msMemory limit: 128 MB There are N cities placed in a line. For e 阅读全文

摘要： Increasing Pair Time limit: 1000 msMemory limit: 128 MB Increasing Pair Time limit: 1000 msMemory limit: 128 MB You are given an array A of length N r 阅读全文

摘要： Time Limit: 0.5 seconds Memory Limit: 512 mebibytes Mingming loves playing with numbers, and today, someone gives him a permutation of nn : P_1, P_2\l 阅读全文

摘要： Description The game “The Pilots Brothers: following the stripy elephant” has a quest where a player needs to open a refrigerator. There are 16 handle 阅读全文

摘要： Description Flip game is played on a rectangular 4x4 field with two-sided pieces placed on each of its 16 squares. One side of each piece is white and 阅读全文

摘要： time limit per test 1 second memory limit per test 256 megabytes time limit per test 1 second time limit per test 1 second memory limit per test 256 m 阅读全文

摘要： Description 7月17日是Mr.W的生日，ACM-THU为此要制作一个体积为Nπ的M层生日蛋糕，每层都是一个圆柱体。 设从下往上数第i(1 <= i <= M)层蛋糕是半径为Ri, 高度为Hi的圆柱。当i < M时，要求Ri > Ri+1且Hi > Hi+1。 由于要在蛋糕上抹奶油，为尽可 阅读全文