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poj 2749 Building roads (二分+拆点+2-sat)
Building roads Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 6229   Accepted: 2093 Description Farmer John's farm has N barns, and there are some cows that...
分类:其他好文   时间:2014-06-30 10:55:18    阅读次数:146
LeetCode: Reorder List [143]
【题目】 Given a singly linked list L: L0→L1→…→Ln-1→Ln, reorder it to: L0→Ln→L1→Ln-1→L2→Ln-2→… You must do this in-place without altering the nodes' values. For example, Given {1,2,3,4}, reorder it to {1,4,2,3}. 【题意】 给定一个链表L: L0→L1→…→Ln-1→Ln,对他重新排序成L...
分类:其他好文   时间:2014-06-30 10:11:14    阅读次数:158
zoj 1655 单源最短路 改为比例+最长路
http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=655 没有理解清题意就硬套模板,所以WA了好几次, 解析看我的另一篇http://blog.csdn.net/u011026968/article/details/35579035 贴代码 #include #include #include ...
分类:其他好文   时间:2014-06-30 09:53:40    阅读次数:276
二分法查找 --JS 实现
var indexOfSorted = function f(arr,n){ //assume : arr has been sorted var low = 0; var high = arr.length - 1; var mid = (low + high) / 2; while(high - low > 1){ if(n == arr[low]){return low...
分类:Web程序   时间:2014-06-30 08:54:10    阅读次数:978
LeetCode: Binary Tree Preorder Traversal [144]
【题目】 Given a binary tree, return the preorder traversal of its nodes' values. For example: Given binary tree {1,#,2,3}, 1 2 / 3 return [1,2,3]. Note: Recursive solution is trivial, could you do it iteratively? 【题意】 非递归返回先序遍历...
分类:其他好文   时间:2014-06-30 06:21:18    阅读次数:334
Set Matrix Zeroes
题目 Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. Follow up: Did you use extra space? A straight forward solution using O(mn) space is probab...
分类:其他好文   时间:2014-06-30 06:17:09    阅读次数:245
Linux下Nginx的安装步骤
Linux下Nginx的安装 如果出现:error: 'ngx_http_file_cache_node_t' has no member named 'length'异常,可能是ngx_cache_purge-2.1.tar.gz版本太旧导致...
分类:系统相关   时间:2014-06-30 00:11:43    阅读次数:401
Text Justification
题目 Given an array of words and a length L, format the text such that each line has exactly L characters and is fully (left and right) justified. You should pack your words in a greedy approa...
分类:其他好文   时间:2014-06-29 23:44:02    阅读次数:357
Meet Apache Wicket
刚开始接触Wicket,所以很多内容都是直译,把原文贴上,望大家指正 Meet Apache Wicket     By JonathanLocke, original author of Wicket     乔纳森·洛克,Wicket的原作者 Why Wicket?       If you arelooking to do web application progra...
分类:其他好文   时间:2014-06-29 22:57:45    阅读次数:247
LeetCode: Linked List Cycle [141]
【题目】 Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra space? 【题意】 判断一个单向链表是否有环 【思路】 维护两个指针p1和p2,p1每次向前移动一步,p2每次向前移动两步 如果p2能够追上p1,则说明链表中存在环...
分类:其他好文   时间:2014-06-29 22:51:33    阅读次数:267
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