摘要： 棋盘覆盖问题Time Limit: 1000ms, Special Time Limit:2500ms, Memory Limit:32768KBTotal submit users: 62, Accepted users: 26Problem 10432 : No special judgementProblem description在一个2k x 2k ( 即：2^k x 2^k )个方格组成的棋盘中，恰有一个方格与其他方格不同，称该方格为一特殊方格，且称该棋盘为一特殊棋盘。在棋盘覆盖问题中，要用图示的4种不同形态的L型骨牌覆盖给定的特殊棋盘上除特殊方格以外的所有方格，且任何2个L型骨牌 阅读全文

摘要： RescueTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 8980Accepted Submission(s): 3301Problem DescriptionAngel was caught by the MOLIGPY! He was put in prison by Moligpy. The prison is described as a N * M (N, M <= 200) matrix. There are WALLs, 阅读全文

摘要： Starship Hakodate-maruTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 243Accepted Submission(s): 175Problem DescriptionThe surveyor starship Hakodate-maru is famous for her two fuel containers with unbounded capacities. They hold the same type of a 阅读全文

摘要： 前m大的数Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5524Accepted Submission(s): 1965Problem Description还记得Gardon给小希布置的那个作业么？（上次比赛的1005）其实小希已经找回了原来的那张数表，现在她想确认一下她的答案是否正确，但是整个的答案是很庞大的表，小希只想让你把答案中最大的M个数告诉她就可以了。 给定一个包含N(N<=3000)个正整数的序列，每个数不超过5000，对 阅读全文

摘要： Self NumbersTime Limit: 20000/10000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 4487Accepted Submission(s): 1961Problem DescriptionIn 1949 the Indian mathematician D.R. Kaprekar discovered a class of numbers called self-numbers. For any positive integer n, define d( 阅读全文