jiankuang

## ArraysLeftRotation.py
def array_left_rotation(a, n, k):
    if n == k * 2:
        for i in range(k):
            a[i+k], a[i] = a[i], a[i+k]
    else:
        temp = a[0]
        i = 0
        while True:
            if i+k < n:
                a[i] = a[i+k]

## ComputeEngine.md

      
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                jiankuang
                / ComputeEngine.md
            
            
              Last active
              November 29, 2016 19:25
            
              
                Google Cloud
              
          
    SSH

gcloud compute ssh jian_kuang@compute-engine-instance-with-bigtable-access

Copy

gcloud compute copy-files Anaconda2-4.2.0-Linux-x86_64.sh jian_kuang@genia-datalab-compute:Anaconda2-4.2.0-Linux-x86_64.sh --zone us-central1-b

  
## Python.md

      
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                jiankuang
                / Python.md
            
            
              Last active
              March 17, 2017 15:18
            
              
                Python snippets
              
          
    split Function
>>> str = "Hello,world,how,are,you"
>>> str.split(",")
['Hello', 'world', 'how', 'are', 'you']
>>> str.split(",")[0]
'Hello'
>>> str.split(",")[1]
'world'
&gt;&gt;&gt; str.split(",", 1)


## sqoop
# import mysql tables into HDFS using sqoop
sqoop import-all-tables --connect jdbc:mysql://localhost/retail_db --username retail_dba --password cloudera
# import mysql tables into hive using sqoop
sqoop import-all-tables --connect jdbc:mysql://localhost/retail_db --username retail_dba --password cloudera --hive-import --create-hive-table

## Binary Tree.md

      
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                jiankuang
                / Binary Tree.md
            
            
              Last active
              October 19, 2022 20:48
            
              
                Data Structures and Algorithms
              
          
    Binary Tree

Traverse a Tree

 // Definition for a binary tree node.
 class TreeNode {
     val: number
     left: TreeNode | null
     right: TreeNode | null
     constructor(val?: number, left?: TreeNode | null, right?: TreeNode | null) {
         this.val = (val===undefined ? 0 : val)

  
## index.html
<head>
<style>
.node circle {
    fill: #fff;
    stroke: steelblue;
    stroke-width: 1.5px;
}
.node {
    font: 10px sans-serif;
}

## index.html
<body>
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script>
var width = 960, height = 900,
    color = d3.scale.category10();

var chart = d3.select("body").append("svg")
	.attr("width", width).attr("height", height)
  .append("g")
  	.attr("transform", "translate(50,50)");

## bubblechart.html
<body>
<nav><ul>
  <li><a href="index.html">Pack Layout</a></li>
  <li><a href="bubblechart.html">Bubble Layout</a></li>
</ul></nav>
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script>
var width = 800, height = 600;

var chart = d3.select("body").append("svg")

## index.html
<body>
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script>
var chart = d3.select("body").append("svg")
    .attr("width", 500)
    .attr("height", 500)
  .append("g")
  	.attr("transform", "translate(50, 50)");

var tree = d3.layout.tree()

## index.html
<body>
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script type="text/javascript">
var data = [10, 50, 80];
var r = 300; // outer radius

var color = d3.scale.ordinal()
	.range(["red", "blue", "orange"]);

var svg = d3.select("body").append("svg")
	def array_left_rotation(a, n, k):
	if n == k * 2:
	for i in range(k):
	a[i+k], a[i] = a[i], a[i+k]
	else:
	temp = a[0]
	i = 0
	while True:
	if i+k < n:
	a[i] = a[i+k]
	# import mysql tables into HDFS using sqoop
	sqoop import-all-tables --connect jdbc:mysql://localhost/retail_db --username retail_dba --password cloudera
	# import mysql tables into hive using sqoop
	sqoop import-all-tables --connect jdbc:mysql://localhost/retail_db --username retail_dba --password cloudera --hive-import --create-hive-table
	<head>
	<style>
	.node circle {
	fill: #fff;
	stroke: steelblue;
	stroke-width: 1.5px;
	}
	.node {
	font: 10px sans-serif;
	}
	<body>
	<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
	<script>
	var width = 960, height = 900,
	color = d3.scale.category10();

	var chart = d3.select("body").append("svg")
	.attr("width", width).attr("height", height)
	.append("g")
	.attr("transform", "translate(50,50)");
	<body>
	<nav><ul>
	<li><a href="index.html">Pack Layout</a></li>
	<li><a href="bubblechart.html">Bubble Layout</a></li>
	</ul></nav>
	<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
	<script>
	var width = 800, height = 600;

	var chart = d3.select("body").append("svg")
	<body>
	<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
	<script type="text/javascript">
	var data = [10, 50, 80];
	var r = 300; // outer radius

	var color = d3.scale.ordinal()
	.range(["red", "blue", "orange"]);

	var svg = d3.select("body").append("svg")