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#200 Number of Islands
正确解法:用recursion,会让码变得简单一点。首先,在recursion function的开头来确定边界条件,如果有out of bound的情况,就马上return。再次就是,对于四个方向,都做一次dfs,并且在这里不需要用if来check边界条件,因为当我们再次进入这个方法的时候,在方法 ...
分类:其他好文   时间:2018-11-10 15:30:42    阅读次数:129
491 Increasing Subsequences
Given an integer array, your task is to find all the different possible increasing subsequences of the given array, and the length of an increasing su... ...
分类:其他好文   时间:2018-11-06 11:21:00    阅读次数:93
77. Combinations
Given two integers n and k, return all possible combinations of k numbers out of 1 ... n. Example: Input: n = 4, k = 2 Output: [ [2,4], [3,4], [2,3], ...
分类:其他好文   时间:2018-11-05 16:22:34    阅读次数:130
222.Count Complete Tree Nodes
Given a complete binary tree, count the number of nodes. Note: Definition of a complete binary tree from Wikipedia: In a complete binary tree every le ...
分类:其他好文   时间:2018-11-05 16:20:47    阅读次数:83
Land of Farms HDU - 5556 二分图匹配
Farmer John and his brothers have found a new land. They are so excited and decide to build new farms on the land. The land is a rectangle and consist ...
分类:其他好文   时间:2018-11-04 16:15:58    阅读次数:206
3.git更新地址也更改
异常信息: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ ...
分类:其他好文   时间:2018-11-02 11:09:18    阅读次数:125
2018-10-31 星期三
English: listening、speaking、reading、writing、translation 1. A beautiful life begins with a beautiful mind. 2. Anything is possible, as long as you set ...
分类:其他好文   时间:2018-11-01 01:03:44    阅读次数:240
Hie with the Pie(POJ 3311)状压DP
Description The Pizazz Pizzeria prides itself in delivering pizzas to its customers as fast as possible. Unfortunately, due to cutbacks, they can affo ...
分类:其他好文   时间:2018-10-30 20:02:28    阅读次数:164
codeforces 261B Maxim and Restaurant(概率DP)
B. Maxim and Restaurant time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output B. Maxim and Res ...
分类:其他好文   时间:2018-10-28 23:02:06    阅读次数:260
90. Subsets II
Given a collection of integers that might contain duplicates, nums, return all possible subsets (the power set). Note: The solution set must not conta ...
分类:其他好文   时间:2018-10-28 17:58:32    阅读次数:184
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