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@artkpv
artkpv / union_find.py
Last active February 15, 2021 12:03
Union-Find in Python (weighted, path compression, connected components)
class UnionFind:
"""Weighted quick-union with path compression and connected components.
The original Java implementation is introduced at
https://www.cs.princeton.edu/~rs/AlgsDS07/01UnionFind.pdf
>>> uf = UnionFind(10)
>>> for (p, q) in [(3, 4), (4, 9), (8, 0), (2, 3), (5, 6), (5, 9),
... (7, 3), (4, 8), (6, 1)]:
... uf.union(p, q)
@BartVB
BartVB / prebid-localstorage.js
Created September 27, 2017 13:33
// Store ad tags in localStorage to enable reporting bad ads
// TODO: This doesn't work if multiple ads are shown in one placement with googletag.pubads().refresh()
googletag.pubads().addEventListener('slotRenderEnded', function (event) {
if (typeof(localStorage) !== 'object') console.log('fail');
if (event.slot.getResponseInformation() === null) return;
var slotAdUnitPath = event.slot.getAdUnitPath();
gpt_placements[slotAdUnitPath] = {};
gpt_placements[slotAdUnitPath]['dfp'] = event.slot.getResponseInformation();
gpt_placements[slotAdUnitPath]['dfp']['contentUrl'] = event.slot.getContentUrl();
@andreicristianpetcu
andreicristianpetcu / ansible-summary.md
Created May 30, 2016 19:25
This is an ANSIBLE Cheat Sheet from Jon Warbrick

An Ansible summary

Jon Warbrick, July 2014, V3.2 (for Ansible 1.7)

Configuration file

intro_configuration.html

First one found from of

@Heray
Heray / pbjs_amazon.html
Last active March 2, 2021 22:51
How to add Amazon as a custom prebid bidder in my site
<html>
<head>
<script>
var PREBID_TIMEOUT = 400;
var googletag = googletag || {};
googletag.cmd = googletag.cmd || [];
@paulirish
paulirish / what-forces-layout.md
Last active July 25, 2024 07:49
What forces layout/reflow. The comprehensive list.

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics
  • elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
@bensojona
bensojona / mraid.js
Created March 6, 2015 19:47
/*
Do not modify this version of the file. It will be copied over when any of the project's targets are built.
If you wish to modify mraid.js, modify the version located at mopub-sdk-common/mraid/mraid.js.
*/
(function() {
var isIOS = (/iphone|ipad|ipod/i).test(window.navigator.userAgent.toLowerCase());
if (isIOS) {
console = {};
console.log = function(log) {
var iframe = document.createElement('iframe');
@staltz
staltz / introrx.md
Last active July 26, 2024 04:24
The introduction to Reactive Programming you've been missing
@yongkangchen
yongkangchen / ctags lua 规则增强
Last active October 29, 2021 11:21
ctags lua 规则增强
--regex-LUA=/^.*\s*function[ \t]*([a-zA-Z0-9_]+):([a-zA-Z0-9_]+).*$/\2/f,function/
--regex-LUA=/^.*\s*function[ \t]*([a-zA-Z0-9_]+)\.([a-zA-Z0-9_]+).*$/\2/f,function/
--regex-LUA=/^.*\s*function[ \t]*([a-zA-Z0-9_]+)\s*\(.*$/\1/f,function/
--regex-LUA=/([a-zA-Z0-9_]+) = require[ (]"([^"]+)"/\1/r,require/
--regex-LUA=/[ \t]{1}([a-zA-Z0-9_]+)[ \t]*[=][^=]/\1/v,variable/
--regex-LUA=/[ \t]*([a-zA-Z0-9_]+)[ \t]*=[ \t]*module_define.*$/\1/m,module/
--regex-LUA=/func_table\[ msg\.([A-Z_]+) \].+/\1/
@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active July 25, 2024 08:07
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'
@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active July 26, 2024 07:44
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname