Problem Description
A snail is at the bottom of a 6-foot well and wants to climb to the top. The snail can climb 3 feet while the sun is up, but slides down 1 foot at night while sleeping. The snai...
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其他好文 时间：
2015-01-28 14:51:13
阅读次数：
126
You are given an n x n 2D matrix representing an image.
Rotate the image by 90 degrees (clockwise).
Follow up:
Could you do this in-place?
根据一个点坐标计算出其他三个点的位置。
可以依据，每个点到外边框的对应距离相等，推算坐标。
...
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其他好文 时间：
2015-01-28 14:49:45
阅读次数：
131
Problem Description
The highest building in our city has only one elevator. A request list is made up with N positive numbers. The numbers denote at which floors the elevator will stop, in specified ...
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其他好文 时间：
2015-01-28 09:55:48
阅读次数：
148
Page_up/Page_down与Home/End互换
CapsLock与Escape互换
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系统相关 时间：
2015-01-28 09:36:46
阅读次数：
156
使用的流程W9825G6JH winbond sdram 4M words X 4banks X 16bits=.Accesses to the SDRAM are burst oriented.Up to 200MHzCAS Latency 2 and 3Burst Length 1,2,4,9 ...
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其他好文 时间：
2015-01-28 09:36:32
阅读次数：
593
题目链接：[Two Sum](https://oj.leetcode.com/problems/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 th...
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其他好文 时间：
2015-01-27 23:36:58
阅读次数：
356
/* Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum...
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其他好文 时间：
2015-01-27 23:09:49
阅读次数：
206
描述：
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 numbers such that they add up to the targ...
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其他好文 时间：
2015-01-27 20:24:52
阅读次数：
213
android中会给配置了
android:parentActivityName
的activity默认加入一个向上返回键，如下：
当点击向上返回后，默认的行为是finish自身，startactivity(配置的父类activity)。
如果我们想要手动控制该行为怎么办？如下：
@Override
public boolean onOptionsItemSelected(Me...
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其他好文 时间：
2015-01-27 18:30:54
阅读次数：
154
Follow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?An obstacle and empty space is marked as 1 and 0 respectively in the grid.For e...
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其他好文 时间：
2015-01-27 13:28:19
阅读次数：
149
