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UVa 679 - Dropping Balls
A number of K balls are dropped one by one from the root of a fully binary tree structure FBT. Each time the ball being dropped first visits a non-terminal node. It then keeps moving down, either foll...
分类:其他好文   时间:2014-09-28 14:31:12    阅读次数:288
Evaluate Reverse Polish Notation
题目描述:Evaluate the value of an arithmetic expression inReverse Polish Notation.Valid operators are+,-,*,/. Each operand may be an integer or another ex...
分类:其他好文   时间:2014-09-28 11:27:51    阅读次数:164
HDU - 5053 the Sum of Cube
Problem Description A range is given, the begin and the end are both integers. You should sum the cube of all the integers in the range.   Input The first line of the input is T(1 Each...
分类:其他好文   时间:2014-09-28 01:35:40    阅读次数:151
AQS 与 LockSupport
1.结构Lock的实现类其实都是构建在AbstractQueuedSynchronizer上,每个Lock实现类都持有自己内部类Sync的实例二。LockSupportThis class associates, with each thread that uses it, a permit (in...
分类:其他好文   时间:2014-09-27 18:00:40    阅读次数:217
leetcode - Clone Graph
Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors. OJ's undirected graph serialization: Nodes are labeled uniquely. We use # as a separator for ea...
分类:其他好文   时间:2014-09-27 15:16:19    阅读次数:121
sicily 1176. Two Ends (Top-down 动态规划+记忆化搜索 v.s. Bottom-up 动态规划)
DescriptionIn the two-player game "Two Ends", an even number of cards is laid out in a row. On each card, face up, is written a positive integer. Play...
分类:其他好文   时间:2014-09-27 00:10:38    阅读次数:444
简单的几步让你的JQuery跑得更快
本文提供即刻提升你的脚本性能的十个步骤。不用担心,这并不是什么高深的技巧。人人皆可运用!这些技巧包括:使用最新版本永盈会娱乐城合并、最小化脚本用for替代each用ID替代class选择器给选择器指定前后文建立缓存避免DOM操作避免使用concat(),利用join()处理长字串返回false值利用...
分类:Web程序   时间:2014-09-26 22:49:08    阅读次数:395
poj1007【求逆序数】
DescriptionOne measure of ``unsortedness'' in a sequence is the number of pairs of entries that are out of order with respect to each other. For insta...
分类:其他好文   时间:2014-09-26 22:07:08    阅读次数:194
Populating Next Right Pointers in Each Node II [leetcode] 空间O(1)的基于循环和基于递归的两种方法
基于循环的方法: void connect(TreeLinkNode *root) { if (root == NULL) return; TreeLinkNode * start = root; TreeLinkNode * end = root; TreeLinkNode * levelEnd = root; ...
分类:其他好文   时间:2014-09-26 20:11:38    阅读次数:164
leetcode Remove Duplicates from Sorted Array
Given a sorted array, remove the duplicates in place such that each element appear onlyonceand return the new length.Do not allocate extra space for a...
分类:其他好文   时间:2014-09-26 19:48:18    阅读次数:182
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