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POJ 3259 Wormholes (图论---最短路 Bellman-Ford || SPFA)
链接:http://poj.org/problem?id=3259 Description While exploring his many farms, Farmer John has discovered a number of amazing wormholes. A wormhole is very peculiar because it is a one-way path t...
分类:其他好文   时间:2014-06-05 05:26:33    阅读次数:240
每日算法之二十:Generate Parentheses
Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: "((()))", "(()())", "(())()", "()(())", "()()...
分类:其他好文   时间:2014-06-05 02:15:14    阅读次数:262
LeetCode: Plus One [067]
【题目】 Given a non-negative number represented as an array of digits, plus one to the number. The digits are stored such that the most significant digit is at the head of the list. 【题意】 给定一个非负整数,这个表示为一个数字数组。计算这个整数加1后的值。 【思路】 从低位到高位依次相加,注意处理进...
分类:其他好文   时间:2014-06-05 01:24:44    阅读次数:250
LeetCode: Valid Number [066]
【题目】 Validate if a given string is numeric. Some examples: "0" => true " 0.1 " => true "abc" => false "1 a" => false "2e10" => true Note: It is intended for the problem statement to be ambiguous. You should gather all requirements up front before imple...
分类:其他好文   时间:2014-06-04 23:45:09    阅读次数:388
利用rman自动备份转储spfile
利用rman自动备份转储spfile   【情景简介】 生产环境丢失了服务器的参数文件,rman已开启自动备份设置。 【操作过程简述】 ----启动rman $rman target / ----检查rman设置 RMAN> show all; ----配置一遍rman自动备份控制文件,模拟初次设置rman自动备份控制文件 RMAN>CONFIGURE CONTROLFILEA...
分类:其他好文   时间:2014-06-04 22:54:12    阅读次数:257
web.xml里<init-param>报错
Description Resource Path Location Type cvc-complex-type.2.4.a: Invalid content was found starting with element 'init-param'. One of '{"http://java.sun.com/xml/ns/javaee":enabled, "http://java.sun....
分类:Web程序   时间:2014-06-03 05:31:38    阅读次数:514
motorola scanner datasheet相关解释 One Discrete Length, Two Discrete Lengths,Length Within Range
以下通过Simple Serial Interface进行设置,非扫描官方datasheet的设置条码....
分类:其他好文   时间:2014-06-03 05:03:16    阅读次数:219
LeetCode: Remove Duplicates from Sorted List II [083]
【题目】 Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list. For example, Given 1->2->3->3->4->4->5, return 1->2->5. Given 1->1->1->2->3, return 2->3. 【题意】 给定一个有序链表,删出其中重复出现的值...
分类:其他好文   时间:2014-05-31 21:14:11    阅读次数:333
leetCode解题报告5道题(九)
题目一:CombinationsGiven two integersnandk, return all possible combinations ofknumbers out of 1 ...n.For example,Ifn= 4 andk= 2, a solution is:[ [2,4],....
分类:其他好文   时间:2014-05-31 20:01:02    阅读次数:455
解决yum升级的问题“There was a problem importing one of the Python modules”
yum命令升级的时候,报出这个错误。There was a problem importing one of the Python modules required to run yum. The error leading to this problem was: No module named yum Please install a package which provides t...
分类:编程语言   时间:2014-05-31 17:42:52    阅读次数:453
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