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Pedro Aniceto pedroanicetoo

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@kevinold
kevinold / mongodb_cheat_sheet.md
Created May 20, 2020 19:17 — forked from bradtraversy/mongodb_cheat_sheet.md
MongoDB Cheat Sheet

MongoDB Cheat Sheet

Show All Databases

show dbs

Show Current Database

@jamesyang124
jamesyang124 / red_black_tree_revisited.md
Last active May 8, 2023 01:51
Red black tree in ruby.

Red Black Tree revisit.

TIME
INSERTION O(log n)
DELETION O(log n)
SEARCH O(log n)

| SPACE | O(n) |

@pietern
pietern / example_note_keeping_app.rb
Created March 27, 2009 14:27
require 'rubygems'
require 'sinatra'
require 'redis'
# To use, simply start your Redis server and boot this
# example app with:
# ruby example_note_keeping_app.rb
#
# Point your browser to http://localhost:4567 and enjoy!
#