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【LeetCode】Permutation Sequence
Permutation SequenceThe set[1,2,3,…,n]contains a total ofn! unique permutations.By listing and labeling all of the permutations in order,We get the fo...
分类:其他好文   时间:2014-12-10 21:11:32    阅读次数:194
iOS 的各种识别码
在iOS系统中,获取设备唯一标识的方法有很多:1. x UDID (Unique Device Identifier,已过期)2. x OPEN UDID (已过期)3. 广告标示符(IDFA-identifierForIdentifier)4. Vendor标示符 (IDFV-identifier...
分类:移动开发   时间:2014-12-10 19:37:41    阅读次数:329
视图、序列、索引、同义词
一、视图语法:CREATE [OR REPLACE] [FORCE|NOFORCE] VIEW view [(alias[, alias]...)]AS subquery[WITH CHECK OPTION [CONSTRAINT constraint]][WITH READ ONLY];1、简单....
分类:其他好文   时间:2014-12-10 17:43:54    阅读次数:243
【LeetCode】Unique Paths
Unique PathsA robot is located at the top-left corner of amxngrid (marked 'Start' in the diagram below).The robot can only move either down or right a...
分类:其他好文   时间:2014-12-10 14:01:54    阅读次数:131
【LeetCode】Unique Paths II
Unique Paths IIFollow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?An obstacle an...
分类:其他好文   时间:2014-12-10 14:00:35    阅读次数:159
[LeetCode] 4Sum hash表
Given an arraySofnintegers, are there elementsa,b,c, anddinSsuch thata+b+c+d= target? Find all unique quadruplets in the array which gives the sum of ...
分类:其他好文   时间:2014-12-10 01:44:20    阅读次数:333
leetcode:Unique Paths
题目是这样的,给定一个m*n的矩形方格,每次走一格,并且只能向右和向下走,求从左上角到右下角的路径数。 扩展问题:如果在方格中写入0和1,其中1代表障碍,也就是不能通过此方格,求其路径数。...
分类:其他好文   时间:2014-12-10 00:34:46    阅读次数:169
LR中的迭代次数设置
在参数化时,对于一次压力测试中均只能用一次的资源应该怎么参数化呢?就是说这些资源用了一次就不能在用了的。 --参数化时,在select next row选择unique,update value on选择 each occurence, 1. 迭代跟虚拟用户数没什么必然联系 迭代是这样的: ...
分类:其他好文   时间:2014-12-09 17:25:56    阅读次数:463
【leetcode】 Unique Binary Search Trees II (middle)☆
Givenn, generate all structurally uniqueBST's(binary search trees) that store values 1...n.For example,Givenn= 3, your program should return all 5 uni...
分类:其他好文   时间:2014-12-09 15:23:03    阅读次数:178
【leetcode】 Unique Binary Search Trees (middle)☆
Givenn, how many structurally uniqueBST's(binary search trees) that store values 1...n?For example,Givenn= 3, there are a total of 5 unique BST's. 1 ....
分类:其他好文   时间:2014-12-09 13:54:28    阅读次数:205
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