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...
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其他好文 时间：
2014-06-26 00:29:49
阅读次数：
168
Given two sorted integer arrays A and B, merge B into A as one sorted array.Note:You may assume that A has enough space (size that is greater or equal...
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其他好文 时间：
2014-06-25 23:01:44
阅读次数：
227
The gray code is a binary numeral system where two successive values differ in only one bit.Given a non-negative integernrepresenting the total number...
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其他好文 时间：
2014-06-25 22:07:58
阅读次数：
330
// 安全释放
#define RELEASE_SAFELY(__Pointer) do{[__Pointer release],__Pointer = nil;} while(0)
// 屏幕的物理高度
#define ScreenHeight [UIScreen mainScreen].bounds.size.height
// 屏幕的物理宽度
#define ScreenWidth...
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其他好文 时间：
2014-06-25 19:58:31
阅读次数：
197
Divide two integers without using multiplication, division and mod operator.
思路：1.先将被除数和除数转化为long的非负数，注意一定要为long，因为Integer.MIN_VALUE的绝对值超出了Integer的范围。
2.常理：任何正整数num都可以表示为num=2^a+2^b+2^c+.....
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其他好文 时间：
2014-06-25 19:46:17
阅读次数：
246
Peterson's algorithm (AKA Peterson's solution) is a concurrent
programming algorithm for mutual
exclusion that allows two processes to share a single-use resource without conflict, using only shar...
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编程语言 时间：
2014-06-25 19:38:19
阅读次数：
748
【题目】
Say you have an array for which the ith element is the price of a given stock on day i.
Design an algorithm to find the maximum profit. You may complete at most two transactions.
Note:
You may not engage in multiple transactions at the same time (i...
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其他好文 时间：
2014-06-24 23:28:43
阅读次数：
223
题目
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return...
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其他好文 时间：
2014-06-24 21:46:24
阅读次数：
249
Copy List with Random Pointer Total Accepted: 12730 Total Submissions: 56262
My Submissions
A linked list is given such that each node contains an additional random pointer which could poi...
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其他好文 时间：
2014-06-24 19:32:26
阅读次数：
194
题目
Given n non-negative integers a1, a2,
..., an, where each represents a point at coordinate (i, ai). n vertical
lines are drawn such that the two endpoints of line i is at (i, ai) and (...
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其他好文 时间：
2014-06-24 16:00:49
阅读次数：
220
