giuniu’s gists

giuniu / Gistテスト

Created June 6, 2011 09:27

Gistのテストをしてみるよ。

コレが中身。

giuniu / Exercise.java

Created December 8, 2011 13:24

最大公約数が最も大きい組み合わせを見つける(Java版)

	import java.util.List;
	import java.util.ArrayList;
	import java.util.Set;
	import java.util.HashSet;
	import java.util.Collections;

	public class Exercise {
	public static void main(String[] args) {
	List<Integer> nums = new ArrayList<>();
	for (String str : args)

giuniu / SortWords.scala

Created December 9, 2011 14:46

ダブり文字列並べ替えロジック Scala版

	object SortWords {

	def main(args: Array[String]): Unit = {
	val list = args.toList sort (_ > _)
	val foldList = (List((1, list.head)) /: list.tail) {
	case (x, y) if (x.head._2 == y) => (x.head._1 + 1, x.head._2) :: x.tail
	case (x, y) => (1, y) :: x
	}
	val result = foldList sort ((a, b) => a._1 > b._1 \|\| a._1 == b._1 && a._2 < b._2) map (_._2)
	println(result)

giuniu / SortWordsJ.java

Created December 10, 2011 09:54

ダブり文字列並べ替えロジック Java版

giuniu / PythagoraSwitch.java

Created December 12, 2011 17:54

原始ピタゴラス数探索ロジック：しらみつぶし編

	import java.util.ArrayList;
	import java.util.List;

	public class PythagoraSwitch {

	public static void main(String[] args) {
	final int MAX = Integer.parseInt(args[0]);
	long start = System.nanoTime();
	List<PythagorasNum> result = new ArrayList<>();
	for (int c = 3; c <= MAX; c += 2) {

giuniu / PythagoraSwitch2.java

Created December 12, 2011 17:55

原始ピタゴラス数探索ロジック：一般項導出編

	import java.util.ArrayList;
	import java.util.List;

	public class PythagoraSwitch2 {

	/**
	* @param args
	*/
	public static void main(String[] args) {
	final int MAX = Integer.parseInt(args[0]);

giuniu / PythagoraSwitch.scala

Created December 13, 2011 22:50

原始ピタゴラス数探索ロジック：Scala版

	import math._

	object PythagoraSwitch {

	def main(args: Array[String]): Unit = {
	val max = Integer.parseInt(args(0))
	val start = System.nanoTime()
	/*
	val result = for (
	c <- 3 to max by 2;

giuniu / MapBetween.scala

Created January 27, 2012 03:11

mapBetween関数とりあえずやっつけ版

	object MapBetween {
	def main(args:Array[String]) = {
	val range = 1 to 10
	println(mapBetween(range, (a1:Int,a2:Int)=>a1+a2))
	println(mapBetween(range, (a1:Int,a2:Int)=>a1*a2))
	println(mapBetween(range, (a1:Int,a2:Int)=>a1-a2))
	}

	def mapBetween[A,B,T>:A](seq:Seq[A], f:(T,T)=>B): Seq[B] = {
	((Seq[B](), seq.head) /: seq.tail) {(tup:(Seq[B], A), a:A) => (tup._1 :+ f(tup._2, a), a)}._1

giuniu / mapBetween2.scala

Created February 24, 2012 02:20

mapBetween関数sliding版

	object mapBetween2 {
	def main(args:Array[String]) = {
	val range = 1 to 10
	println(mapBetween(range)(_+_) mkString ",")
	println(mapBetween(range)(_*_) mkString ",")
	println(mapBetween(range)(_-_) mkString ",")
	}

	def mapBetween[A,B,T>:A](seq:Seq[A])(f:(T,T)=>B): Iterator[B] = {
	seq.sliding(2).map(s=>f(s(0),s(1)))

giuniu / mapBetween.scala

Created February 27, 2012 11:54

mapBetween関数 trait版

	object mapBetween {
	def main(args:Array[String]) = {
	val range = new Range(1, 10, 1) with ExtSeq[Int]
	println(range.mapBetween(_+_) mkString ",")
	println(range.mapBetween(_*_) mkString ",")
	println(range.mapBetween(_-_) mkString ",")

	val range2 = 1 to 10
	println(range2.mapBetween(_+_) mkString ",")
	println(range2.mapBetween(_*_) mkString ",")

Hideaki Takahara giuniu