leonmak

# if not root, find parent, set parent, return parent
p = map(chr, range(n))

def find(p, x):
    if p[x] != x:
        p[x] = find(p, p[x])
    return p[x]
    
def union(p, i, j):
    pi, pj = find(p, i), find(p, j)

leonmak

leonmak

from collections import defaultdict

class Solution(object):
    def alienOrder(self, words):
        """
        :type words: List[str]
        :rtype: str
        """
        graph = defaultdict(list)        
                

leonmak

In VM

sudo adduser ubuntu
sudo su ubuntu
cd /home/ubuntu

mkdir .ssh
chmod 700 .ssh

cd .ssh

leonmak

# . set_gopath.sh
export GOPATH=`pwd`
export PATH="$GOPATH/bin:$PATH"

# for mac osx
# export GOBIN=$GOPATH/bin
# unset if `flogo build`

git config --global --unset alias.gb

leonmak

import io
import re
import sys
import collections
 
if len(sys.argv) != 7:
    print(sys.argv[0] + " <base_dict> <base_lm> <ext_dict> <ext_lm> <merged_dict> <merged_lm>")
    sys.exit(2)
 
[basedic, baselm, extdic, extlm, outdic, outlm] = sys.argv[1:7]

leonmak

#!/bin/bash
outputdir="../audio-8k"
mkdir -p $outputdir 
for file in **/*.wav
do
    filename=$(basename $file)
    dir=$(dirname $file)
    echo $dir
    outputfile="${outputdir}/${file}"
    mkdir -p $(dirname $outputfile)

leonmak

Notes on setting up Jupyter notebook on instances

Configuring instance

For gcloud:

• Specified protocols and ports > Enter tcp:<PORT-NUMBER> for this field if this is the page you see.
• Targets > All instances in the network.
• Allowed protocols and ports

For others:

• Specify ip port if you want to expose one

leonmak

export PATH=/usr/local/cuda-9.0/bin${PATH:+:${PATH}}
export LD_LIBRARY_PATH=/usr/local/cuda-9.0/lib64 ${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
sudo ldconfig /usr/local/cuda/lib64

leonmak

Summary of installation

based on pyimagesearch tutorial

• install XCode, homebrew
• install python3:
  • brew install python3
  • brew linkapps python3
• if existing virtual environment is installed, activate it
• else activate new virtualenv cv (using virtualenvwrapper):