在mac osx下进行wpa/wpa2 加密的wifi破解

• 首先要安装aircrack-ng工具

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  #可以使用Homebrew进行安装 brew install aircrack-ng

  如果安装过程中出现下载失败, 这篇文章

• 用airport搜索附近wifi

  1	sudo airport -s

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今天又碰到了brew install安装时不能下载相关的文件, 哎! 天朝的"防火墙"已无力吐槽...

之前碰到过的, 记得brew可以手动下载文件放入到brew的cache文件夹即可. 果然好记性不如烂笔头,这里将方法记录下,不用每次得上网去搜, 要是没有联网咋办!

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#使用如下命令得到brew下载的cache目录

brew --cache

将下载的文件放到该目录, 然后重新运行安装命令即可(要注意下载文件的文件名要[修改]与上面的一致)

A Maze is given as N*N binary matrix of blocks where source block is the upper left most block i.e., maze[0][0] and destination block is lower rightmost block i.e., maze[N-1][N-1]. A rat starts from source and has to reach destination. The rat can move only in two directions: forward and down.

In the maze matrix, 0 means the block is dead end and 1 means the block can be used in the path from source to destination. Note that this is a simple version of the typical Maze problem. For example, a more complex version can be that the rat can move in 4 directions and a more complex version can be with limited number of moves.

Following is an example maze.

Gray blocks are dead ends(value = 0).

git帮助

git help [command]

本地创建repository, 推送到远端

1. git init

2. git remote add [remote repository name] [remote repository url] git remote add origin https://github.com/BlockLink/blocklink_crosschain_privatekey.git

3. git push -u [remote repository name] [remote branch name] git push -u origin master

分支相关

跳转分支

git checkout <branch> > 跳转到分支:将HEAD指向, 并 更新index和文件.

创建本地分支并且推送到远端

1. 创建本地分支 git checkout -b [branch_name]

2. 推送到远端 git push <remote_repository_path> <branch_name>[:<remote_branch_name>]

3. 设置跟踪分支 git branch -u <remote_repository_path/remote_branch_name>

设置跟踪分支

git checkout [-b [branch]] [--track] <remotename>/<branch> > 用于对未创建的分支建立跟踪分支; 并且跳转到分支上.

git branch -u <remotename>/<branch> or git branch --set-upstream-to=origin/<branch> <localbranch> > 为当前所在的分支创建跟踪分支

一般如果你直接通过clone命令拉取一个仓库, 则git会自动设置一个本地master到origin/master的跟踪 分支. * master 3cf359f [origin/master] Site updated: 2015-12-18 11:55:19

if p[i'] <= R - i; then p[i] = p[i'] else p[i] >= R -i (which we should expand i (the center) past the rigth edge to get it)