Chess Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 2605 Accepted Submission(s): 1092 Problem Description Alice and Bob are playing a special chess game on an n × 20 chessboard. There are s…
题意:针对Nim博弈,给定上一个集合,然后下面有 m 个询问,每个询问有 x 堆石子 ,问你每次只能从某一个堆中取出 y 个石子,并且这个 y 必须属于给定的集合,问你先手胜还是负. 析:一个很简单的博弈,对于每组数据,要先处理出SG函数, 然后使用组合游戏和来解决就ok了,对于求sg函数,很明显,就是求所有的mex,也就是未出现过的最小自然数.最后取异或就ok了. 代码如下: #pragma comment(linker, "/STACK:1024000000,1024000000"…
Good Luck in CET-4 Everybody! Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3552 Accepted Submission(s): 2232 Problem Description 大学英语四级考试就要来临了,你是不是在紧张的复习?也许紧张得连短学期的ACM都没工夫练习了,反正我知道的Kiki和C…
Chess 题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=5724 Description Alice and Bob are playing a special chess game on an n × 20 chessboard. There are several chesses on the chessboard. They can move one chess in one turn. If there are no other che…