quanon

# Count the yo-yos I have by brand and get the top 5 brands.
# Use the CSV output from Notion's database to tally.
require 'csv'

rows = CSV.read(Pathname(Dir.home).join('Downloads/my_yoyos.csv'))
resutls = rows.slice(1..).map { _1[1].split(/,\s*/) }.flatten.tally
resutls.sort_by { -_2 }.first(5).to_h

quanon

# 決定性有限オートマトン (DFA)
class DFA
  class InvalidEvent < StandardError; end

  attr_reader :current_state

  def initialize(current_state:, accept_states:, rules:)
    @current_state = current_state
    @accept_states = accept_states
    @rules = rules

quanon

const convertTableToRows = (selector) => {
  const table = document.querySelector(selector);
  const rows = [];
  const headers = Array.from(table.querySelectorAll('tr:first-child th')).map(th => th.innerText);
  rows.push(headers);

  table.querySelectorAll('tr').forEach(tr => {
    const row = [];
    tr.querySelectorAll('td').forEach(td => {
      row.push(td.innerText);

quanon

import itertools
from collections.abc import Iterator


def fizzbuzz(n: int) -> Iterator[int | str]:
    '''
    Return the fizzbuzz of n, an exact integer >= 0.

    >>> from fizzbuzz import fizzbuzz
    >>> [i for i in fizzbuzz(15)]

quanon

require 'terminal-table' # https://github.com/tj/terminal-table
​
N = 30 # 合計人数
​
# table[n][0] は男子を選ぶ組み合わせの数。
# table[n][1] は女子を選ぶ組み合わせの数。
table = Array.new(N + 1) { Array.new(2, 0) }
​
# n = 1 のときは男子も女子も 1 通りずつ。
table[1][0] = 1

quanon

require 'delegate'
# https://github.com/tj/terminal-table
require 'terminal-table'

# ナップサック問題（Ruby）
# http://obelisk.hatenablog.com/entry/2017/05/26/162601
# 典型的な DP (動的計画法) のパターンを整理 Part 1 ～ ナップサック DP 編 ～
# https://qiita.com/drken/items/a5e6fe22863b7992efdb

class Item

quanon

#
# Sets Prezto options.
#
# Authors:
#   Sorin Ionescu <sorin.ionescu@gmail.com>
#

#
# General
#

quanon

const puppeteer = require('puppeteer');
const columnify = require('columnify');

const url = 'https://www.google.co.jp/';
const args = process.argv.slice(2);

(async () => {
  const browser = await puppeteer.launch();

  let results = await Promise.all(args.map(async (word) => {

quanon

#! /usr/bin/env ruby
require 'open3'

class NmapResult
  IP_ADDRESS_PATTERN = /\d+\.\d+\.\d+\.\d+/
  MAC_ADDRESS_PATTERN = /([\dA-F]{2}:){5}[\dA-F]{2}/

  attr_reader :lines

  def self.parse(stdout)

quanon

# (あえて境界値がうるう日前後になるように) 今日の日付が 2020/02/29 (土) だと仮定する。
today = Date.parse('2020/02/29')

User.order(:birthday).each { |user| puts("#{user.birthday.strftime('%Y/%m/%d')} #{user.name}")}
# 1989/02/28 ピカチュウ
# 1989/03/01 カイリュー
# 2000/02/29 ヤドラン
# 2000/03/01 ピジョン

age_from = 20 # 20 歳から