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@k-hamada
k-hamada / lazy_method_call.rb
Created March 14, 2016 03:26
def ok
puts "ok"
true
end
def ng
puts "ng"
false
end
@k-hamada
k-hamada / lottery.rb
Last active March 13, 2016 08:33
module Lottery
class << self
def draw(probablity_rates, upper_limit = 10000)
chosen_value = rand(0...upper_limit)
probablity_rates.find_index{|probablity_rate|
chosen_value -= probablity_rate
chosen_value < 0
}
end
end
@k-hamada
k-hamada / 2112.rb
Created September 14, 2015 06:57
#ciqprocon
hands = %w(G C P G)
puts hands[(hands.index(gets.chomp)||0) + 1]
@k-hamada
k-hamada / Dockerfile
Created August 13, 2015 14:39
comic-walker
FROM alpine:latest
RUN apk add --update \
build-base \
openssl \
curl \
ruby \
ruby-dev \
ruby-bundler \
imagemagick \
imagemagick-dev && \
@k-hamada
k-hamada / KonamiCode-Kefir.js
Created August 2, 2015 10:31
KonamiCode in Rx
const CONAMI = [38, 38, 40, 40, 37, 39, 37, 39, 66, 65];
let array_equal = (arr1, arr2) => JSON.stringify(arr1) === JSON.stringify(arr2);
Kefir
.fromEvents(document, 'keydown')
.map((ev) => ev.keyCode)
.slidingWindow(CONAMI.length, CONAMI.length)
.filter((keycodes) => array_equal(keycodes, CONAMI))
.onValue((keycodes) => alert('Konami Code'));
@k-hamada
k-hamada / integer-partition.js
Last active July 31, 2022 16:03
function* zs1(n) {
"use strict";
if (n <= 0) throw new Error('positive integer only');
yield [n];
var x = new Array(n);
x[0] = n;
for (var i = 1; i < n; i++) x[i] = 1;
@k-hamada
k-hamada / gist:95f719da6e2be4c3f9a6
Created January 31, 2015 16:05
document.getElementsByClassName('watch').forEach(function (a) { a.href = a.href.split("?")[0] })
@k-hamada
k-hamada / index.html
Last active August 29, 2015 14:07
[漢字の線に囲まれた部分だけを塗りつぶした画像で何の四字熟語か当てる画像を作る](http://bl.ocks.org/k-hamada/02383e0406b2447600f8)
<!DOCTYPE html>
<html>
<head>
<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet" type="text/css" />
<meta charset="utf-8">
<title>漢字の線に囲まれた部分だけを塗りつぶした画像で何の四字熟語か当てる画像を作る</title>
<script src="http://jsrun.it/assets/k/P/F/1/kPF1v"></script>
<style>
canvas {
border: 1px #ccc solid;
@k-hamada
k-hamada / index.html
Last active August 29, 2015 14:07
[SUGOI 50 Checker](http://bl.ocks.org/k-hamada/raw/930ea23568dc8731cbf8/)
<!DOCTYPE html>
<html>
<head>
<script src="//cdnjs.cloudflare.com/ajax/libs/vue/0.10.6/vue.min.js"></script>
<script src="//rawgit.com/flatiron/director/master/build/director.min.js"></script>
<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet" type="text/css" />
<meta charset="utf-8">
<title>SUGOI 50 Checker</title>
</head>
<body>
@k-hamada
k-hamada / IntegerPartition.rb
Created June 17, 2014 17:22
Integer Partition - 自然数の分割
module IntegerPartition
def zs1
n = self
fail 'positive integer only' if n <= 0
Enumerator.new do |yielder|
yielder << [n]
x = [1] * n
x[0] = n
m = 0