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Path Sum
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. For example: Given the below binary tree and sum ...
分类:其他好文   时间:2014-12-30 19:10:58    阅读次数:135
ActionBar下拉选项卡
ActionBar下拉选项卡 一、ActionBar简介 ActionBar(活动栏)替代了显示在屏幕顶端的标题栏,主要负责显示菜单,widget,导航等功能。 ActionBar主要由四个部分组成: AppIcon(应用标识、向主界面导航)、ViewControl(视图切换,或者显示一些描述信息)、ActionButtons(显示应用程序中最重要的动作、长按图标会提示该动...
分类:其他好文   时间:2014-12-30 15:22:55    阅读次数:170
Binary Tree Level Order Traversal II
Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root). For example: Given binary tree {3,9,20,#,#,15,7}, ...
分类:其他好文   时间:2014-12-30 15:17:01    阅读次数:160
LintCode-Unique Path II
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 i...
分类:其他好文   时间:2014-12-30 08:09:14    阅读次数:161
[LeetCode#2]Add Two Numbers
The question:Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices ...
分类:其他好文   时间:2014-12-30 07:01:44    阅读次数:170
[LeetCode#1] Two Sum
The Problem:Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices o...
分类:其他好文   时间:2014-12-30 07:00:19    阅读次数:201
程序员的圣诞节后-零
u-boot-2014.10代码分析及移植说明 1 ENTRY(_main) 2 3 /* 4 * Set up initial C runtime environment and call board_init_f(0). 5 */ 6 7 #if defined(CONFIG_SPL_B...
分类:其他好文   时间:2014-12-30 00:17:13    阅读次数:401
[LeetCode]Linked List Cycle II
Given a linked list, return the node where the cycle begins. If there is no cycle, return null. Follow up: Can you solve it without using extra space? 首先设圆环的长度为r,距离环口为a时相遇,环外的那一段的距离是b,那么有2(a+b)=a...
分类:其他好文   时间:2014-12-29 21:35:30    阅读次数:248
[LeetCode]Linked List Cycle
Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra space? 利用快慢指针 /** * Definition for singly-linked list. * class ListNode { * int v...
分类:其他好文   时间:2014-12-29 21:35:23    阅读次数:235
转载--《怎样制作一款优秀的塔防游戏》
怎样制作一款优秀的塔防游戏?近日,独立游戏工作室,经典塔防游戏《守护者冒险》(Defender’s Quest)开发商Level Up Labs联合创始人拉斯·杜切特(Lars Doucet)撰写专栏文章,分享了其工作室制作《守护者冒险》的11项原则。杜切特表示,塔防游戏要想最大限度发挥自身潜力,需...
分类:其他好文   时间:2014-12-29 18:08:50    阅读次数:223
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