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There Can Be More Than One
?There Can Be More Than OneKeith BraithwaiteiT SEEMS To BE A nEvEREnding SouRCE of surprise and distress to system builders that one data model, one message format, one message transport—in fact, exact...
分类:其他好文   时间:2015-08-01 08:51:15    阅读次数:113
【LeetCode-面试算法经典-Java实现】【062-Unique Paths(唯一路径)】
【062-Unique Paths(唯一路径)】【LeetCode-面试算法经典-Java实现】【所有题目目录索引】原题  A robot is located at the top-left corner of a m x n grid (marked ‘Start’ in the diagram below).   The robot can only move either down or...
分类:编程语言   时间:2015-08-01 07:45:10    阅读次数:1868
把 Mac 上的 bash 换成 zsh
本人补充:mac版git下载地址:http://code.google.com/p/git-osx-installer/downloads/list?can=3&q=&sort=-uploaded&colspec=Filename+Summary+Uploaded+Size+DownloadCoun...
分类:系统相关   时间:2015-08-01 00:59:53    阅读次数:232
Can you answer these queries?---hdu4027
题目链接有n个数:当操作为1时求L到R的和;当操作为0时更新L到R为原来的平方根;不过如果仔细演算的话会发现一个2^64数的平方根开8次也就变成了 1,所以也更新不了多少次,所以可以每次更新到底。、#include#include#include#include#include#define INF...
分类:其他好文   时间:2015-07-31 23:25:41    阅读次数:140
(线段树 区间查询更新) Can you answer these queries? -- hdu--4027
链接:http://acm.hdu.edu.cn/showproblem.php?pid=4027分析:因为这个操作是把一个数变成平方根,所以显得略棘手,不过如果仔细演算的话会发现一个2^64数的平方根开8次也就变成了 1,所以也更新不了多少次,所以可以每次更新到底。、注意:给的X Y大小未知,会出...
分类:其他好文   时间:2015-07-31 23:10:52    阅读次数:223
第二周习题F
Starting withxand repeatedly multiplying byx, we can computex31with thirty multiplications:x2=xxx,x3=x2xx,x4=x3xx,... ,x31=x30xx.The operation of squa...
分类:其他好文   时间:2015-07-31 20:03:58    阅读次数:97
UVa 297.Quadtrees【非二叉树之四分树】【7月31】
Quadtrees A quadtree is a representation format used to encode images. The fundamental idea behind the quadtree is that any image can be split into four quadrants. Each quadrant may again be split ...
分类:其他好文   时间:2015-07-31 18:37:19    阅读次数:137
Intro to DBSCAN
DBSCANDensity-Based Spatial Clustering of Application with NoiseIt can discover cluster of arbitrary shapeA cluster is defined as a maximal set of den...
分类:数据库   时间:2015-07-31 17:43:38    阅读次数:114
解决 python 中读写文件的终极方案 UnicodeDecodeError: 'gbk' codec can't decode byte 0x9d in position 1270: illega
# UnicodeDecodeError: ‘gbk’ codec can’t decode byte 0x9d in position 1270: illegal multibyte sequence上面是遇到的错误,本来想完成读文件,再写入另一文件的。但是在 fp.read() 时,一直遇到上面的错误,经过各种百度,google, 还有神奇的 stackoverflow 才知道是字符流的问题。知...
分类:编程语言   时间:2015-07-31 16:27:47    阅读次数:163
Leetcode: climbing stairs
July 28, 2015Problem statement:You are climbing a stair case. It takesnsteps to reach to the top.Each time you can either climb 1 or 2 steps. In how m...
分类:其他好文   时间:2015-07-31 14:43:06    阅读次数:100
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