Black And White(DFS+剪枝)

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Black And White(DFS+剪枝)

Black And White Time Limit: 2000/2000 MS (Java/Others) Memory Limit: 512000/512000 K (Java/Others)Total Submission(s): 3937 Accepted Submission(s): 1082Special Judge Problem Description In mathematics, the four color theorem, or the four color…

hdoj 5113 Black And White DFS+剪枝

Black And White Time Limit: 2000/2000 MS (Java/Others) Memory Limit: 512000/512000 K (Java/Others) Total Submission(s): 929 Accepted Submission(s): 238 Special Judge Problem Description In mathematics, the four color theorem, or the four color map th…

[HDU 5113] Black And White (dfs+剪枝)

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5113 题目大意:给你N*M的棋盘,K种颜色,每种颜色有c[i]个(sigma(c[i]) = N*M),现在给棋盘染色,使得相邻的两个棋盘染成不同的颜色,并且把所有颜色用完. 因为棋盘最大为5*5的,因此可以考虑搜索+剪枝. 从左到右,从上到下看当前格子能够染成什么颜色. 有一个限制性条件,就是说如果当前棋盘的格子数量的一半小于一种颜色的数量时,那么就一定有两个相邻的棋盘被染成了相同的颜色. 因为假…

*HDU1455 DFS剪枝

Sticks Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 9779 Accepted Submission(s): 2907 Problem Description George took sticks of the same length and cut them randomly until all parts became…

POJ 3009 DFS+剪枝

POJ3009 DFS+剪枝原题: Curling 2.0 Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 16280 Accepted: 6725 Description On Planet MM-21, after their Olympic games this year, curling is getting popular. But the rules are somewhat different from our…

poj 1724:ROADS（DFS + 剪枝）

ROADS Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 10777 Accepted: 3961 Description N cities named with numbers 1 ... N are connected with one-way roads. Each road has two parameters associated with it : the road length and the toll…

DFS(剪枝) POJ 1011 Sticks

题目传送门 /* 题意:若干小木棍,是由多条相同长度的长木棍分割而成,问最小的原来长木棍的长度: DFS剪枝:剪枝搜索的好题!TLE好几次,终于剪枝完全! 剪枝主要在4和5:4 相同长度的木棍不再搜索:5 若新的搜索连第一条都没组合出来,直接break: 详细解释:http://blog.csdn.net/lyy289065406/article/details/6647960 http://www.cnblogs.com/devil-91/archive/2012/08/03/2621787.…