sharmaeklavya2

Competitive Programming Syllabus

Geometry

• Graham Scan algorithm for Convex Hull O(n * log(n))
• Online construction of 3-D convex hull in O(n^2)
• Bentley Ottmann algorithm to list all intersection points of n line segments in O((n + I) * logn)
  • Suggested Reading - http://softsurfer.com/Archive/algorithm_0108/algorithm_0108.htm
• Rotating Calipers Technique
  • Suggested Reading - http://cgm.cs.mcgill.ca/~orm/rotcal.html

• Problems - Refer the article for a list of problems which can be solved using Rotating Calipers technique.

seven1m

syntax on                                       " enable syntax highlighting
set background=dark                             " we like it dark!
try | colorscheme gruvbox | catch | endtry      " use this awesome theme if possible
highlight Pmenu ctermbg=black guibg=black     | " fix popup color so it's easier to read
filetype plugin on                              " load plugins based on file type
filetype indent on                              " load indent settings based on file type
set shiftwidth=2                                " number of spaces to use for indenting
set softtabstop=2                               " number of spaces to use when inserting a tab
set tabstop=2                                   " show tabs as 2 spaces
set expandtab                                   " convert tabs into spaces

trevnorris

uv_run

- uv__update_time(): Update time with millisecond precision.


- uv__run_timers(): Loop through "heap" and run timers whose timeout > time.


- uv__run_pending(): Run all callbacks on the pending_queue. Remove each item
  from the queue when run.

awidegreen

# systemd service spec for pulseaudio running in system mode -- not recommended though!
# on arch, put it under /etc/systemd/system/pulseaudio.service
# start with: systemctl start pulseaudio.service
# enable on boot: systemctl enable pulseaudio.service 
[Unit]
Description=Pulseaudio sound server
After=avahi-daemon.service network.target

[Service]
ExecStart=/usr/bin/pulseaudio --system --disallow-exit --disallow-module-loading

addyosmani

Update May 2017

Eric Bidelman has documented some of the common workflows possible with headless Chrome over in https://developers.google.com/web/updates/2017/04/headless-chrome.

Update

If you're looking at this in 2016 and beyond, I strongly recommend investigating real headless Chrome: https://chromium.googlesource.com/chromium/src/+/lkgr/headless/README.md

Windows and Mac users might find using Justin Ribeiro's Docker setup useful here while full support for these platforms is being worked out.

dperini

//
// Regular Expression for URL validation
//
// Author: Diego Perini
// Created: 2010/12/05
// Updated: 2018/09/12
// License: MIT
//
// Copyright (c) 2010-2018 Diego Perini (http://www.iport.it)
//

tpope

inoremap <silent> <Bar>   <Bar><Esc>:call <SID>align()<CR>a

function! s:align()
  let p = '^\s*|\s.*\s|\s*$'
  if exists(':Tabularize') && getline('.') =~# '^\s*|' && (getline(line('.')-1) =~# p || getline(line('.')+1) =~# p)
    let column = strlen(substitute(getline('.')[0:col('.')],'[^|]','','g'))
    let position = strlen(matchstr(getline('.')[0:col('.')],'.*|\s*\zs.*'))
    Tabularize/|/l1
    normal! 0
    call search(repeat('[^|]*|',column).'\s\{-\}'.repeat('.',position),'ce',line('.'))