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LeetCode的medium题集合(C++实现)五
1 Combination Sum Given a set of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate numbers sums to T. The same repeated number may be chosen from C...
分类:编程语言   时间:2015-05-16 12:00:54    阅读次数:139
【Construct Binary Tree from Preorder and Inorder Traversal】cpp
题目:Given preorder and inorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree.代码:/** * Def...
分类:其他好文   时间:2015-05-16 11:53:57    阅读次数:141
sql函数
--字符替换select translate('abcdefgabcdef','abc','123') from dual;select translate('agbfceddeafbgc','abc','123') from dual;--字符串替换select replace('abcdaefg...
分类:数据库   时间:2015-05-16 11:53:21    阅读次数:202
Java for LeetCode 064 Minimum Path Sum
Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path.N...
分类:编程语言   时间:2015-05-16 11:45:30    阅读次数:149
【转】SQL删除重复记录,只保留其中一条
SQL:删除重复数据,只保留一条用SQL语句,删除掉重复项只保留一条在几千条记录里,存在着些相同的记录,如何能用SQL语句,删除掉重复的呢1、查找表中多余的重复记录,重复记录是根据单个字段(peopleId)来判断 select * from people where peopleId in (se...
分类:数据库   时间:2015-05-16 10:27:29    阅读次数:143
那些臭名昭著的sql
两个或多个表关联,没写where条件,大量的笛卡尔值,严重时会导致数据库有问题。select * from a, b left join c on b.id = c.id left join d on c.id = d.id多表关联查询,where条件使用各种函数,导致索引无效。数据量如果打起来以后...
分类:数据库   时间:2015-05-16 10:25:29    阅读次数:148
DELPHI XE5-8 弹出列表框供选择
点击章节练习:var tmplm:Tlistboxitem;begin dm.FDQTMP.SQL.Clear; dm.FDQTMP.SQL.Add('select GSESSON from TSquestions where GLESSON=:ggl group by GSESSON'); ...
分类:Windows程序   时间:2015-05-16 09:04:23    阅读次数:155
【Leetcode】【Medium】Triangle
Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.For example, given the fol...
分类:其他好文   时间:2015-05-16 06:45:28    阅读次数:126
mac, start sublime from terminal
1.where is sublime CLI/Applications/Sublime Text.app/Contents/SharedSupport/bin/subl2. run sublime CLI from terminalopen "/Applications/Sublime Text.a...
分类:系统相关   时间:2015-05-16 06:43:59    阅读次数:188
Java利用Callable、Future进行并行计算求和
内容:在Java中利用Callable进行带返回结果的线程计算,利用Future表示异步计算的结果,分别计算不同范围的Long求和,类似的思想还能够借鉴到需要大量计算的地方。 public class Sums { public static class Sum implements Callable { private final Long from; private fi...
分类:编程语言   时间:2015-05-16 01:33:29    阅读次数:149
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