Given a binary tree, determine if it is a valid
binary search tree (BST).Assume a BST is defined as follows:The left subtree of
a node contains only n...
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其他好文 时间：
2014-05-19 07:23:48
阅读次数：
357
Say you have an array for which theithelement
is the price of a given stock on dayi.If you were only permitted to complete at
most one transaction (ie...
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其他好文 时间：
2014-05-18 20:30:16
阅读次数：
301
【题目】
原文：
1.8 Assume you have a method isSubstring which checks if one word is a substring of another. Given two strings, s1 and s2, write code to check if s2 is a rotation of s1 using only one...
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其他好文 时间：
2014-05-16 01:50:08
阅读次数：
311
题目1：Best Time to Buy and Sell Stock
Say you have an array for which the ith element is the price of a given stock on day i.
If you were only permitted to complete at most one transaction (ie,...
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其他好文 时间：
2014-05-16 01:46:15
阅读次数：
460
介绍ViewFlipper
ViewFlipper
Simple ViewAnimator that will animate between two or more views that have been added to it. Only one child is shown at a time. If requested, can automatically flip betwee...
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其他好文 时间：
2014-05-15 18:37:44
阅读次数：
356
Problem Description:
Given a binary tree, determine if it is a valid binary search tree (BST).
Assume a BST is defined as follows:
The left subtree of a node contains only nodes with keys l...
分类：
其他好文 时间：
2014-05-15 11:22:21
阅读次数：
317
Pat1043代码
题目描述：
A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties:
The left subtree of a node contains only nodes with keys less than t...
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其他好文 时间：
2014-05-15 05:09:59
阅读次数：
351
Humble Numbers
题目描述
A number whose only prime factors are 2,3,5 or 7 is called a humble number. The sequence 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 27, ... shows the fi...
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其他好文 时间：
2014-05-15 01:36:22
阅读次数：
230
Best Time to Buy and Sell Stock1Say you have an
array for which theithelement is the price of a given stock on dayi.If you were
only permitted to comp...
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其他好文 时间：
2014-05-14 22:36:11
阅读次数：
353
当我们在linux系统用vim编辑一个文件时，由于断电或其他的原因，比如用的ssh连接的端口，网络中断而关闭等。当再次编辑这个文件时会有提示：“filname.swp”alreadyexists![O]penRead-Only,(E)ditanyway,(R)ecover,(Q)uit:当再次按确认键，可进入编辑模式，每次进入都会问你一..
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其他好文 时间：
2014-05-14 19:17:12
阅读次数：
252
