yashhere

license: gpl-3.0

yashhere

Array

• Two Sum
• Best Time to Buy and Sell Stock
• Contains Duplicate
• Product of Array Except Self
• Maximum Subarray
• Maximum Product Subarray
• Find Minimum in Rotated Sorted Array

yashhere

To remove a submodule you need to:

• Delete the relevant section from the .gitmodules file.
• Stage the .gitmodules changes git add .gitmodules
• Delete the relevant section from .git/config.
• Run git rm --cached path_to_submodule (no trailing slash).
• Run rm -rf .git/modules/path_to_submodule (no trailing slash).
• Commit git commit -m "Removed submodule "
• Delete the now untracked submodule files rm -rf path_to_submodule

yashhere

// https://stackoverflow.com/a/44359967/5042046
func PrettyJson(data interface{}) (string, error) {
	const (
		empty = ""
		tab   = "\t"
	)

	buffer := new(bytes.Buffer)
	encoder := json.NewEncoder(buffer)

yashhere

#! /usr/bin/env bash
set -e
set -o nounset # Exit, with error message, when attempting to use an undefined variable.
set -o errexit # Abort script at first error, when a command exits with non-zero status.
set -o pipefail # Returns exit status of the last command in the pipe that returned a non-zero return value.
IFS=$'\n\t' # Defines how Bash splits words and iterates arrays. This defines newlines and tabs as delimiters.

export INSTALL_COMMAND="apt-get -q -y"

output_file="output.log"

yashhere

The situation

Searching can be an efficient way to navigate the current buffer.

The first search commands we learn are usually / and ?. These are seriously cool, especially with the incsearch option enabled which lets us keep typing to refine our search pattern. / and ? really shine when all we want is to jump to something we already have our eyeballs on but they are not fit for every situation:

• when we want to search something that's not directly there, those two commands can make us loose context very quickly,
• when we need to compare the matches.

A better way

yashhere

My Vim-related gists

Articles

• How to use Tim Pope's Pathogen
• Idiomatic vimrc (superseded by idiomatic-vimrc)
• Clipboard sharing on Mac OS X is easy
• Apprentice — The Making Of
• Vim: pushing built-in features beyond their limits
• The right way to override any highlighting if you don't want to edit the colorscheme file directly

yashhere

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

yashhere

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

yashhere

#!/usr/bin/env python

import Queue
import multiprocessing
import urllib2
import feedparser
import socket

feeds = ['http://today.reuters.com/rss/topNews',
          'http://today.reuters.com/rss/domesticNews',