mre

# Use multirust to manage multiple Rust builds:

# 1. Install multirust
curl -sf https://raw.githubusercontent.com/brson/multirust/master/blastoff.sh | sh

# 2. Show installed Rust builds
multirust list-toolchains

# 3. Install new build (stable, beta, nightly)
multirust update nightly

mfuerstenau

  ZigZag-Encoding
  ---------------
  
  Maps negative values to positive values while going back and
  forth (0 = 0, -1 = 1, 1 = 2, -2 = 3, 2 = 4, -3 = 5, 3 = 6 ...)

  (i >> bitlength-1) ^ (i << 1)

  with "i" being the number to be encoded, "^" being
  XOR-operation and ">>" would be arithemtic shifting-operation

alexniver

#前言 由于大家都懂的, 国内使用go get的时候, 经常会各种失败, 如果有vpn的话, 打开vpn, 问题就解决了, 但vpn其实挺不灵活的.

相对来说shadowsock则灵活得多.

#解决方案 shadowsock + Privoxy

思路就是, 使用shadowsock建立一个本地sock5代理, 但因为go get 需要http代理, 所以需要使用privoxy把sock5代理转为http代理.

zaemiel

1. Go to Sublime Text to: Tools -> Build System -> New Build System 
and put the next lines:

{
    "cmd": ["python3", "-i", "-u", "$file"],
    "file_regex": "^[ ]File \"(...?)\", line ([0-9]*)",
    "selector": "source.python"
}

Then save it with a meaningful name like: python3.sublime-build

application2000

These commands are based on a askubuntu answer http://askubuntu.com/a/581497
To install gcc-6 (gcc-6.1.1), I had to do more stuff as shown below.
USE THOSE COMMANDS AT YOUR OWN RISK. I SHALL NOT BE RESPONSIBLE FOR ANYTHING.
ABSOLUTELY NO WARRANTY.

If you are still reading let's carry on with the code.

sudo apt-get update && \
sudo apt-get install build-essential software-properties-common -y && \
sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y && \

keithweaver

Point Domain to Amazon Web Services (AWS) EC2 Instance

1. Open the Amazon Route 53 console at https://console.aws.amazon.com/route53/.
2. If you are new to Amazon Route 53, you see a welcome page; choose Get Started Now for DNS Management. Otherwise, choose Hosted Zones in the navigation pane.
3. Choose Create Hosted Zone.
4. For Domain Name, type your domain name.
5. Choose Create.
6. Click the Hosted Zone, edit record set.
7. In the value, add ec2-54-152-134-146.compute-1.amazonaws.com.
8. Change your DNS file to point to the IPv4 address (This would be in something like GoDaddy).

rosiehoyem

Install Airflow

1. Install Airflow

Follow the installation instructions on the Airflow website.

Update Airflow Configurations

To configure Airflow to use Postgres rather than the default Sqlite3, go to airflow.cfg and update this configuration to LocalExecutor:

# The executor class that airflow should use. Choices include

jayant91089

121 Best Time to Buy and Sell Stock

Say you have an array for which the ith element is the price of a given stock on day i.

If you were only permitted to complete at most one transaction (ie, buy one and sell one share of the stock), design an algorithm to find the maximum profit.

Example 1: Input: [7, 1, 5, 3, 6, 4] Output: 5

bartolsthoorn

import torch
import torch.nn as nn
import numpy as np
import torch.optim as optim
from torch.autograd import Variable

# (1, 0) => target labels 0+2
# (0, 1) => target labels 1
# (1, 1) => target labels 3
train = []

tomokishii

Modern Gradient Boosting models - how to use GridSearchCV

My current environment is...

• Python 3.5.2
• Scikit-learn 0.18.1
• XGBoost (python-package) 0.6
• LightGBM (python-package) v2.0