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[LeetCode]Rank Scores,解题报告
题目Write a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. Note that after a tie, the next ranking number should be the next consecutive integer value....
分类:其他好文   时间:2015-04-21 18:05:04    阅读次数:182
[LeetCode] 001. Two Sum
Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of the two nu...
分类:其他好文   时间:2015-04-21 12:45:40    阅读次数:168
201. Bitwise AND of Numbers Range Leetcode Python
Given a range [m, n] where 0 For example, given the range [5, 7], you should return 4. Credits: Special thanks to @amrsaqr for adding this problem and creating all test cases. code is...
分类:编程语言   时间:2015-04-21 09:43:12    阅读次数:188
Bitwise AND of Numbers Range--LeetCode
Given a range [m, n] where 0 For example, given the range [5, 7], you should return 4. 思路:第一个思路肯定是从第一个数开始按位与,但是这样的复杂度太高,开始有新的改进,如果这个范围内有2的幂,那么从这个开始按位或即可,这个2的幂要紧挨着n,如果发现这个2的幂次小于m,那么仍然从这个范围开始安装或。 in...
分类:其他好文   时间:2015-04-21 09:42:43    阅读次数:120
language level in Intellij IDEA
TheLanguage levelsetting sets which features the code assistance in the editor should support. For example, if you're using JDK 1.7 but want your code...
分类:其他好文   时间:2015-04-20 22:27:19    阅读次数:146
[LeetCode] Swap Nodes in Pairs 成对交换节点
Given a linked list, swap every two adjacent nodes and return its head.For example,Given1->2->3->4, you should return the list as2->1->4->3.Your algor...
分类:其他好文   时间:2015-04-20 16:38:34    阅读次数:116
Bitwise AND of Numbers Range
Given a range [m, n] where 0 For example, given the range [5, 7], you should return 4 题意:求[m,n]之间所有数的按位与 初看之下,觉得太简单不过了,直接依次遍历 public class Solution { public int rangeBitwiseAnd(int m,...
分类:其他好文   时间:2015-04-20 11:21:01    阅读次数:585
对比MySQL,你究竟在什么时候更需要MongoDB(转)
译文:对比MySQL,你究竟在什么时候更需要MongoDB原文链接:When Should I Use MongoDB rather than MySQL (or other RDBMS): The Billing Example(编译/仲浩 审校/毛梦琪)【编者按】随着数据的爆发性增长,NoSQL...
分类:数据库   时间:2015-04-20 01:44:27    阅读次数:174
Partition List -- leetcod
Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x. You should preserve the original relative order of the nodes in each of...
分类:其他好文   时间:2015-04-19 17:56:02    阅读次数:131
Array and its point.
a is the array name.&a is the ponit of 2-D array which contains a[5].the type of &a should be int (*)[5]. oh what is int(*)5.............................
分类:其他好文   时间:2015-04-19 17:52:04    阅读次数:166
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