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How to print binary tree diagram?
...l - level;
int endgeLines = (int) Math.pow(2, (Math.max(floor - 1, 0)));
int firstSpaces = (int) Math.pow(2, (floor)) - 1;
int betweenSpaces = (int) Math.pow(2, (floor + 1)) - 1;
BTreePrinter.printWhitespaces(firstSpaces);
List<Node<T>> newNodes ...
How to initialize an array's length in JavaScript?
..., e.g.
var data = [];
var length = 5; // user defined length
for(var i = 0; i < length; i++) {
data.push(createSomeObject());
}
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Resizing an image in an HTML5 canvas
...lement them yourself then! Oh come on, we're entering the new age of Web 3.0, HTML5 compliant browsers, super optimized JIT javascript compilers, multi-core(†) machines, with tons of memory, what are you afraid of? Hey, there's the word java in javascript, so that should guarantee the performance,...
How to test which port MySQL is running on and whether it can be connected to?
...
209
To find a listener on a port, do this:
netstat -tln
You should see a line that looks like th...
How can I profile Python code line-by-line?
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120
I believe that's what Robert Kern's line_profiler is intended for. From the link:
File: pyston...
Matplotlib different size subplots
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390
Another way is to use the subplots function and pass the width ratio with gridspec_kw:
import n...
How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting
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230
For fitting y = A + B log x, just fit y against (log x).
>>> x = numpy.array([1, 7, 20...
C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
..._
#include <pthread.h>
#define MESSAGE_COUNT 16
#define MESSAGE_LENGTH 2048
class MessageBuffer{
private:
pthread_mutex_t mutex;//访问缓冲的互斥量
pthread_cond_t condition;//访问缓冲区的条件变量
//消息缓冲区，循环队列
char buf[MESSAGE_COUNT][MESSAGE_LENGT...
ZeroMQ实例-使用ZMQ(ZeroMQ)进行局域网内网络通信 - C/C++ - 清泛网 - 专注C/C++及内核技术
...rg/
百度网盘的下载地址 ： http://pan.baidu.com/s/1mg61em0
ZMQ API 的 百度网盘 下载地址 ： http://pan.baidu.com/s/1jGDqXfS
注：在本文写作时，ZMQ版本已经升级到4.1.0，不过影响没多大
2）解压源文件
tar zxf zeromq-4.0.3.tar.gz
3）...
Insert a row to pandas dataframe
...df.sort_index() # sorting by index
And you get, as desired:
A B C
0 2 3 4
1 5 6 7
2 7 8 9
See in Pandas documentation Indexing: Setting with enlargement.
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