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[Leetcode] n queens n皇后问题
The n-queens puzzle is the problem of placing n queens on an n×nchessboard such that no two queens attack each other. Given an integer n, return all d ...
分类:其他好文   时间:2017-07-08 17:54:07    阅读次数:169
LeetCode--N-Queens
The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. Given an integer n, return all ...
分类:其他好文   时间:2017-06-23 14:15:29    阅读次数:172
leetCode 51.N-Queens (n皇后问题) 解题思路和方法
N-Queens The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. Given an integer n, re ...
分类:其他好文   时间:2017-06-22 22:57:37    阅读次数:176
【LeetCode】051. N-Queens
题目: The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. Given an integer n, return ...
分类:其他好文   时间:2017-05-16 21:38:18    阅读次数:167
N-Queens
The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. Given an integer n, return all ...
分类:其他好文   时间:2016-12-29 08:16:31    阅读次数:158
UVA 10859 Placing Lampposts
题解: 一道很基础的树形DP题目 有趣的是需要在点V1最小的情况下,边两点同时亮的条数足够大 边两点同时亮的条数足够大。等价于边一点同时亮的条数最小V2 构造X = M * V1 + V2 当M足够大时,就把2个变量维护成一个变量....interesting DP方程 dp[ u ][ 0 ] + ...
分类:其他好文   时间:2016-12-02 03:00:05    阅读次数:147
回溯法(backtracking) 题目整理--------part2
N-Queens 模拟退火不会写 0.0 The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. Given an i ...
分类:其他好文   时间:2016-10-06 06:59:07    阅读次数:213
Java review-basic2
1.Implement a thread-safe (blocking) queue: 2. Memory consistency effects: As with other concurrent collections, actions in a thread prior to placing ...
分类:编程语言   时间:2016-09-13 01:25:16    阅读次数:254
LeetCode51 N-Queens
题目: The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. Given an integer n, return ...
分类:其他好文   时间:2016-09-08 23:18:42    阅读次数:183
LightOJ1230 Placing Lampposts(DP)
题目大概说给一个森林求其最小点覆盖数,同时在最小点覆盖条件下输出最多有多少条边被覆盖两次。 dp[0/1][u]表示以u为根的子树内的边都被覆盖且u不属于/属于覆盖集所需的最少点数 另外,用cnt[0/1][u]表示满足dp[0/1][u]状态下子树内被覆盖两次最多的边数 对于dp[0][u]只能从 ...
分类:其他好文   时间:2016-07-14 21:38:54    阅读次数:209
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