CSUST_ACM的专栏

Description 　　给定一个m × n (m行, n列)的迷宫，迷宫中有两个位置，gloria想从迷宫的一个位置走到另外一个位置，当然迷宫中有些地方是空地，gloria可以穿越，有些地方是障碍，她必须绕行，从迷宫的一个位置，只能走到与它相邻的4个位置中,当然在行走过程中，gloria不能走到迷宫外面去。令人头痛的是，gloria是个没什么方向感的人，因此，她在行走过程中，不能转太多弯了，

Description A common pastime for poker players at a poker table is to shuffle stacks of chips. Shuffling chips is performed by starting with two stacks of poker chips, S1 and S2, each stack conta

Sudoku Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 9679   Accepted: 4791   Special Judge Description Sudoku is a very sim

Description Background  The knight is getting bored of seeing the same black and white squares again and again and has decided to make a journey  around the world. Whenever a knight moves, it is

Description This problem is a reverse case of the problem 2996. You are given the output of the problem H and your task is to find the corresponding input. Input according to output of proble