jyukutyo

  val maltiplicativeResults = 1 to 999 flatMap(i => 1 to 999 map(_ * i))

  val answer = maltiplicativeResults.filter({i =>
    if (i.toString.length % 2 != 0) {
      false
    }
    i.toString.reverse == i.toString
  })

  Console.print(answer.max)

jyukutyo

lazy val ps: Stream[Int] = 2 #:: Stream.from(3).filter(
  i => {
    // 素数だけのリストを作る。jはiの平方根より小さい数で、iが割り切れる数である。
    ps.takeWhile(j => { j * j <= i }).forall(i % _ > 0)
  }
)

val n = 600851475143L

// 素因数の素朴試し割り法では、割る数の最大値はその数の平方根まででよい。

jyukutyo

        $("a[rel=popover]").popover({trigger: 'manual'}).click(function(e){
            $(this).popover('toggle');
            e.preventDefault();
        });

jyukutyo

.search-form {
    position: relative;
    padding: 30px 19px 5px;
    background-color: white;
    border: 1px solid #DDD;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
}

jyukutyo

import scala.util.control.Breaks._

object Problem3 extends App {

  val target: Long = 600851475143L
  var maxOfAnswer = 600851475143L

  // val answer = number(target).takeWhile(1 < _).filter(n => target % n == 0 && isPrime(n)).head
  var n = 2;
  breakable{

jyukutyo

object Problem2 extends App {
  def fibFrom(a: Int, b: Int): Stream[Int] = a #:: fibFrom(b, a + b)

  val answer = fibFrom(1, 2).takeWhile( _ < 4000000).filter(_ % 2 == 0).sum
  Console.println(answer)

}

jyukutyo

object Problem2 extends App {
  def fibonacci(first: Int, second: Int, max: Int): mutable.LinkedList[Int] = {

    var a = first
    var b = second

    var list = new mutable.LinkedList[Int]()
    if (a % 2 == 0) list :+= a
    if (b % 2 == 0) list :+= b
    breakable {

jyukutyo

object Problem1 extends App {
  val answer = (1 until 1000).view.filter(x => { x % 3 == 0 || x % 5 == 0 }).sum
  Console.println(answer)
}

jyukutyo

object Problem1 extends App {
  val list = List.range(1, 1000)
  val nums = list.filter(x => { x % 3 == 0 || x % 5 == 0 })
  val answer = nums.sum
  Console.print(answer)
}

jyukutyo

# coding: utf-8
require 'rubygems'
require 'net/irc'

class TaeClient < Net::IRC::Client
  def on_rpl_welcome(m)
    post JOIN, opts.channel
  end

  def on_privmsg(m)