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每日算法之二十:Generate Parentheses
Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: "((()))", "(()())", "(())()", "()(())", "()()...
分类:其他好文   时间:2014-06-05 02:15:14    阅读次数:262
[LeetCode]Longest Valid Parentheses
Longest Valid Parentheses 最长有效括号对...
分类:其他好文   时间:2014-06-05 01:16:14    阅读次数:215
Generate Parentheses
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:2014-06-04 22:30:30    阅读次数:418
Spiral Matrix II
Given an integern, generate a square matrix filled with elements from 1 ton2in spiral order.For example,Givenn=3,You should return the following matri...
分类:其他好文   时间:2014-06-04 19:28:23    阅读次数:220
POJ1068——Parencodings
ParencodingsDescriptionLet S = s1 s2...s2n be a well-formed string of parentheses. S can be encoded in two different ways: q By an integer sequence P ...
分类:其他好文   时间:2014-06-02 06:19:50    阅读次数:185
LeetCode: Unique Binary Search Trees II [096]
【题目】 Given n, generate all structurally unique BST's (binary search trees) that store values 1...n. For example, Given n = 3, your program should return all 5 unique BST's shown below. 1 3 3 2 1 \ / / / \ ...
分类:其他好文   时间:2014-06-01 15:33:45    阅读次数:297
【leetcode】Generate Parentheses
题目: 给定整数n,返回n对匹配的小括号字符串数组。 For example, given n = 3, a solution set is: "((()))", "(()())", "(())()", "()(())", "()()()" 分析: 这种问题的模式是:1)问题的解有多个 ,2)每个解都是由多个有效的 ”步骤“ 组成的,3)变更以有解的某个或某些”步骤“ 可...
分类:其他好文   时间:2014-05-31 22:28:45    阅读次数:467
Brute-forced Euclid Distance Transform
Sepearable 2D EDT, going to extend to 3D in order to calculate the Signed Distance Function(Field)Cost 0.75s to generate the SDF at 768^2
分类:其他好文   时间:2014-05-28 03:13:14    阅读次数:276
模拟括号
Let S = s1 s2...s2n be a well-formed string of parentheses. S can be encoded in two different ways:q By an integer sequence P = p1 p2...pn where pi is...
分类:其他好文   时间:2014-05-26 22:07:33    阅读次数:300
LeetCode: Spiral Matrix II [058]
【题目】 Given an integer n, generate a square matrix filled with elements from 1 to n2 in spiral order. For example, Given n = 3, You should return the following matrix: [ [ 1, 2, 3 ], [ 8, 9, 4 ], [ 7, 6, 5 ] ] 【题意】 给定整数n, 将1,2,3...nxn个数按螺旋旋转的方式填入n...
分类:其他好文   时间:2014-05-25 07:08:17    阅读次数:235
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