题目传送:http://acm.hdu.edu.cn/showproblem.php?pid=6045 Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 687    Accepted Submission(s): 389 Problem Description Derek and Alfia are good friends.Derek …

题目传送: Hybrid Crystals Problem Description > Kyber crystals, also called the living crystal or simply the kyber, and known as kaiburr crystals in ancient times, were rare, Force-attuned crystals that grew in nature and were found on scattered planets…

题目传送:Killer Names Problem Description > Galen Marek, codenamed Starkiller, was a male Human apprentice of the Sith Lord Darth Vader. A powerful Force-user who lived during the era of the Galactic Empire, Marek originated from the Wookiee home planet…

Problem Description HazelFan is given two positive integers a,b, and he wants to calculate amodb. But now he forgets the value of b and only remember the value of a, please tell him the number of different possible results.   Input The first line con…

Problem Description This is Kolakosiki sequence: 1,2,2,1,1,2,1,2,2,1,2,2,1,1,2,1,1,2,2,1……. This sequence consists of 1 and 2, and its first term equals 1. Besides, if you see adjacent and equal terms as one group, you will get 1,22,11,2,1,22,1,22,11…

Problem Description You are given a permutation a from 0 to n−1 and a permutation b from 0 to m−1. Define that the domain of function f is the set of integers from 0 to n−1, and the range of it is the set of integers from 0 to m−1. Please calculate t…

Problem Description Talented Mr.Tang has n strings consisting of only lower case characters. He wants to charge them with Balala Power (he could change each character ranged from a to z into each number ranged from 0 to 25, but each two different cha…

Problem Description We define the distance of two strings A and B with same length n isdisA,B=∑i=0n−1|Ai−Bn−1−i|The difference between the two characters is defined as the difference in ASCII.You should find the maximum length of two non-overlapping…

Problem Description Give an array A, the index starts from 1.Now we want to know Bi=maxi∤jAj , i≥2.   Input The first line of the input gives the number of test cases T; T test cases follow.Each case begins with one line with one integer n : the size…

Problem Description The school set up three elective courses, assuming that these courses are A, B, C. N classes of students enrolled in these courses.Now the school wants to count the number of students who enrolled in at least one course in each cl…