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[LeetCode]: 22 : Generate Parentheses
题目:Givennpairs of parentheses, write a function to generate all combinations of well-formed parentheses.For example, givenn= 3, a solution set is:"(((...
分类:其他好文   时间:2015-10-12 23:52:39    阅读次数:203
LeetCode OJ:Combination Sum II (组合之和 II)
Given a collection of candidate numbers (C) and a target number (T), find all unique combinations inCwhere the candidate numbers sums toT.Each number ...
分类:其他好文   时间:2015-10-10 15:14:42    阅读次数:205
LeetCode #17 Letter Combinations of a Phone Number (M)
[Problem]Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the...
分类:其他好文   时间:2015-10-10 00:25:21    阅读次数:202
Generate Parentheses
Generate Parentheses给定一个数字n,生成符合要求的n对括号Givennpairs of parentheses, write a function to generate all combinations of well-formed parentheses.For exampl...
分类:其他好文   时间:2015-10-08 22:46:59    阅读次数:169
40. Combination Sum II (Recursion)
Given a collection of candidate numbers (C) and a target number (T), find all unique combinations inCwhere the candidate numbers sums toT.Each number ...
分类:其他好文   时间:2015-10-05 09:14:32    阅读次数:219
Combination Sum II
Given a collection of candidate numbers (C) and a target number (T), find all unique combinations inCwhere the candidate numbers sums toT.Each number ...
分类:其他好文   时间:2015-10-01 09:13:12    阅读次数:218
LeetCode (22): Generate Parentheses
链接: https://leetcode.com/problems/generate-parentheses/【描述】Givennpairs of parentheses, write a function to generate all combinations of well-formed pa...
分类:其他好文   时间:2015-09-30 14:23:24    阅读次数:1481
LeetCode Combination Sum
原题链接在这里:https://leetcode.com/problems/combination-sum/本题与Combinations,Permutations,N-Queens都是递归回溯类问题。target每次减掉candidates里一个数,然后递归调用helper, target设成ta...
分类:其他好文   时间:2015-09-28 23:59:25    阅读次数:389
LeetCode Combinations
原题链接在这里:https://leetcode.com/problems/combinations/和N-Queens都是NP问题,利用helper迭代,迭代的stop condition是item.size() == k, 此时把item的copy加到res中。若item.size()还没有到k...
分类:其他好文   时间:2015-09-27 11:07:39    阅读次数:127
LeetCode: Generate Parentheses [021]
【称号】Givennpairs of parentheses, write a function to generate all combinations of well-formed parentheses.For example, givenn= 3, a solution set is:"((...
分类:其他好文   时间:2015-09-24 16:11:18    阅读次数:141
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