HDOJ 4876 ZCC loves cards

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HDOJ 4876 ZCC loves cards

枚举组合,在不考虑连续的情况下推断能否够覆盖L...R,对随机数据是一个非常大的减枝. 通过检測的暴力计算一遍 ZCC loves cards Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 1346 Accepted Submission(s): 335 Problem Description ZCC loves playing…

HDU 4876 ZCC loves cards（暴力剪枝)

HDU 4876 ZCC loves cards 题目链接题意:给定一些卡片,每一个卡片上有数字,如今选k个卡片,绕成一个环,每次能够再这个环上连续选1 - k张卡片,得到他们的异或和的数,给定一个L,问能组成[L,R]全部数字的情况下,R的最大值是多少思路:暴力C(20, 6),然后对于每一个序列去全排后模拟计算值, 只是之前要有个剪枝.全排前.先把k个数随机取数(即不用连续),然后假设这样还满足不了,那么连续的情况肯定也满足不了.直接结束.不进入全排.这样一来因为满足不了的情况实际上是占…

hdu 4876 ZCC loves cards(暴力)

题目链接:hdu 4876 ZCC loves cards 题目大意:给出n,k,l,表示有n张牌,每张牌有值.选取当中k张排列成圈,然后在该圈上进行游戏,每次选取m(1≤m≤k)张连续的牌,取牌上值的亦或和.要求找到一个圈,使得L~R之间的数都能够得到,输出R.假设R < L输出0. 解题思路:暴力,首先预处理出来每种选取的亦或值,然后在该基础上从能够组成L的状态中挑选一个,L+1的状态中挑取一个,知道说总的挑取出全部状态中选中的牌的个数大于K为值,然后用全排序去查找最大的R. #includ…

HDU 4876 ZCC loves cards _(:зゝ∠)_ 随机输出保平安

GG,,,g艹 #include <cstdio> #include <iostream> #include <algorithm> #include <string.h> #include <vector> #include <queue> #include <math.h> using namespace std; vector<int>G[21][7];//G[i][j] 表示n=i k=j的情况下二进…

多校训练赛2 ZCC loves cards

ZCC loves cards Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 260 Accepted Submission(s): 7 Problem Description ZCC loves playing cards. He has n magical cards and each has a number on it.…

HDU4876:ZCC loves cards

Problem Description ZCC loves playing cards. He has n magical cards and each has a number on it. He wants to choose k cards and place them around in any order to form a circle. He can choose any several consecutive cards the number of which is m(1<=m…

HDU4876ZCC loves cards(多校题)

ZCC loves cards Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 2362 Accepted Submission(s): 590 Problem Description ZCC loves playing cards. He has n magical cards and each has a number on it. He…