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[LeetCode] Subsets
Subsets Given a set of distinct integers, nums, return all possible subsets. Note: Elements in a subset must be in non-descending order.The solution set must not contain duplicate subsets...
分类:其他好文   时间:2015-05-26 16:11:41    阅读次数:107
Contains Duplicate
Contains Duplicate问题:Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at l...
分类:其他好文   时间:2015-05-26 15:55:23    阅读次数:116
LeetCode Contains Duplicate
LeetCode Contains Duplicate题目思路刚开始还以为是什么异或判重; 后来发现是自己想错了- -; 还是哈希好点。代码bool containsDuplicate(int* nums, int numsSize) { if (numsSize <= 1) return false; int length = 100007; if (numsSize...
分类:其他好文   时间:2015-05-26 09:15:33    阅读次数:113
【转】MySQL的Replace into 与Insert into on duplicate key update真正的不同之处
原文链接:http://www.jb51.net/article/47090.htm今天听同事介绍oracle到mysql的数据migration,他用了Insert into ..... on duplicate key update ...,我当时就想怎么不用Replace呢,于是回来就仔细查了...
分类:数据库   时间:2015-05-25 22:15:11    阅读次数:201
iOS开发-duplicate symbols for architecture armv7解决方案
今天修改了自己项目的部分代码,发现XCode编译的时候报错:duplicate symbols for architecture armv71.排查是否有名字重复的文件;2.检查是否在#import头文件的时候,不小心将.h写成了.m(这种情况居多,本人属于此类情况)
分类:移动开发   时间:2015-05-25 17:56:47    阅读次数:127
[LeetCode] Contains Duplicate
Contains Duplicate Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the array, and it should return fal...
分类:其他好文   时间:2015-05-25 16:35:22    阅读次数:111
Contains Duplicate
https://leetcode.com/problems/contains-duplicate/Given an array of integers, find if the array contains any duplicates. Your function should return tr...
分类:其他好文   时间:2015-05-25 14:26:13    阅读次数:169
题目8:MySQL----------Duplicate Emails
Suppose that a website contains two tables, the Customers table and the Orders table. Write a SQL query to find all customers who never order anything. Table: Customers. +----+-------+ | Id | Na...
分类:数据库   时间:2015-05-24 08:53:15    阅读次数:164
题目7:MySQL----------Duplicate Emails
Write a SQL query to find all duplicate emails in a table named Person. +----+---------+ | Id | Email | +----+---------+ | 1 | a@b.com | | 2 | c@d.com | | 3 | a@b.com | +----+---------+ For ...
分类:数据库   时间:2015-05-24 08:53:04    阅读次数:133
xcode引入第三方静态类库 duplicate symbol _OBJC_XXX 重复编译错误
xcode引入第三方静态类库 duplicate symbol _OBJC_XXX 重复编译错误一:场景 xcode 同时引入了 libA.a, libB.a 两个静态类库,如果 这两个静态类库之中,都打包了,相同的库,方法之类的, 且 xcode 的other link flag 为 -a...
分类:其他好文   时间:2015-05-22 16:39:49    阅读次数:109
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