Steven C. stevencch99

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Face the music

"The best time to plant a tree is twenty years ago. The second-best time is now." - African Proverb

stevencch99 / big-o.md

Created November 24, 2023 03:28 — forked from PJUllrich/big-o.md

Big-O Time Complexities for Elixir Data Structures

Big-O Time Complexities for Elixir data structures

Operation	Time Complexity
Access	`O(log n)`
Search	`O(log n)`
Insertion	`O(n)` for <= 32 elements, `O(log n)` for > 32 elements [2]
Deletion	`O(n)` for <= 32 elements, `O(log n)` for > 32 elements

stevencch99 / .dockerignore

Created July 28, 2020 11:31 — forked from yizeng/.dockerignore

An example .dockerignore file for Rails

	.git
	.gitignore

	# Created by https://www.gitignore.io/api/git,ruby,rails,jetbrains+all
	# Edit at https://www.gitignore.io/?templates=git,ruby,rails,jetbrains+all

	### Git ###
	# Created by git for backups. To disable backups in Git:
	# $ git config --global mergetool.keepBackup false
	*.orig

stevencch99 / cities.json

Created May 24, 2020 02:49

stevencch99 / install_font_adobe_source_code_pro.sh

Created September 4, 2019 06:06 — forked from enzinier/install_font_adobe_source_code_pro.sh

Install font Adobe Source Code Pro on Ubuntu 16.04 LTS

	#!/bin/sh
	# Userland mode (~$USER/), (~/).

	# ~/.fonts is now deprecated and that
	#FONT_HOME=~/.fonts
	# ~/.local/share/fonts should be used instead
	FONT_HOME=~/.local/share/fonts

	echo "installing fonts at $PWD to $FONT_HOME"
	mkdir -p "$FONT_HOME/adobe-fonts/source-code-pro"

stevencch99 / update_tasks_count.rb

Created June 9, 2019 08:22

	namespace :db do
	desc 'Reset counter cache of tasks count in project.'
	task update_tasks: :environment do
	print '開始更新任務數'
	Project.all.each do \|p\|
	Project.reset_counters(p.id, :tasks)
	print '.'
	end
	puts '更新完成！'
	end

stevencch99 / schema.rb

Created June 9, 2019 08:20

	create_table "projects", force: :cascade do \|t\|
	t.string "name"
	t.datetime "created_at", null: false
	t.datetime "updated_at", null: false
	t.integer "tasks_count", default: 0
	end
	create_table "tasks", force: :cascade do \|t\|
	t.string "name"
	t.integer "project_id"
	t.datetime "created_at", null: false

stevencch99 / primeString_simple_test.js

Last active May 19, 2019 12:39

	console.log(primeString("asdf")); // should be true
	console.log(primeString("abac")); // should be true
	console.log(primeString("qiuefgqiuefgqiuefg")); // should be false
	console.log(primeString("zkvjhuj")); // should be true

stevencch99 / primeString_iteration_by_tainasu.js

Created May 19, 2019 12:27

	function primeString(s, count = 1) {
	// 如果字串中有重複的模式，最少也會重複 1 次，故迭代超過字串長度的一半還沒找到就不用找了
	if(count > s.length / 2) { return true }

	// 每次迭代將字串的一小塊，設定為分割陣列的符號 chunk
	let chunk = s.slice(0, count)
	// 被 chunk 切過的部分會變成陣列中的空元素，此行判斷是不是能夠將陣列切成重複的小塊
	// 如果切完後全部的陣列元素都是空的，代表字串被 chunk 整除，恭喜找到規律。
	let grouped = s.split(chunk).every(i => i === '')

stevencch99 / primeString_best_practice_exp.rb

Created May 19, 2019 12:05

stevencch99 / primeString_best_practice_exp.js

Created May 19, 2019 12:04