steloflute

요즘 뜨고 있는 Clojure 프로그래밍 언어. 하지만 Clojure 프로그램은 대개 느리다. Clojure 프로그램 최적화 기법이다. Project Euler Problem 10을 예제로 사용한다. [코드 시작] (ns Euler.core (:gen-class)) (set! *warn-on-reflection* true) (defn prime? [n] (loop [i 2] (if ( 10배 향상 (problem10b)loop를 doseq에서 일반 recur로 바꾸었다. doseq은 range로 만들어진 시퀀스를 순회하기 때문에.. 중복 코드가 있어서 매크로를 작성하였다. (C의 for 문 흉내내기) (defmacro loopwhile [init-symbol init whilep step & body] ..

A clock with a sweep second 초침이 부드럽게 움직이는 시계 .Net Framework 필요 http://msdn.microsoft.com/en-us/netframework/aa569263.aspx Screenshot Program Source Code License Copyright 2012-2015 Taegyoon Kim Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICE..

http://stackoverflow.com/questions/4510212/how-i-can-get-web-pages-content-and-save-it-into-the-string-variable You can use the WebClientWebClient client = new WebClient(); string downloadString = client.DownloadString(http://www.gooogle.com);

.Net Framework 필요 http://msdn.microsoft.com/en-us/netframework/aa569263.aspx Executable: Source: using System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Text; using System.Text.RegularExpressions; using System.Threading; using System.Threading.Tasks; namespace ShowIndex { class Program { static void Main(string[] args) { var client = new WebClient(); var..

Description A big clock written in C# Displays the time in the program title Platform: Microsoft Windows Screenshot Program Source Code License Copyright 2012 Taegyoon Kim Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless require..

http://arcanecode.com/2007/03/21/encoding-strings-to-base64-in-c/ static public string EncodeTo64(string toEncode) { byte[] toEncodeAsBytes = System.Text.ASCIIEncoding.ASCII.GetBytes(toEncode); string returnValue = System.Convert.ToBase64String(toEncodeAsBytes); return returnValue; } Note two things, first I am using ASCII encoding, which should cover most folks. Just in case though, System.Text..

Problem 5410 October 2003 In the card game poker, a hand consists of five cards and are ranked, from lowest to highest, in the following way:High Card: Highest value card.One Pair: Two cards of the same value.Two Pairs: Two different pairs.Three of a Kind: Three cards of the same value.Straight: All cards are consecutive values.Flush: All cards of the same suit.Full House: Three of a kind and a ..

http://www.cplusplus.com/doc/tutorial/files/ Input/Output with filesC++ provides the following classes to perform output and input of characters to/from files: ofstream: Stream class to write on filesifstream: Stream class to read from filesfstream: Stream class to both read and write from/to files. These classes are derived directly or indirectly from the classes istream, and ostream. We have a..

Problem 16 03 May 2002 215 = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26. What is the sum of the digits of the number 21000? Answer: 1366 C# using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Numerics; namespace Euler { class Program { static void Main(string[] args) { Console.WriteLine(BigInteger.Pow(2, 1000).ToString().ToCharArray()..

Problem 60 02 January 2004 The primes 3, 7, 109, and 673, are quite remarkable. By taking any two primes and concatenating them in any order the result will always be prime. For example, taking 7 and 109, both 7109 and 1097 are prime. The sum of these four primes, 792, represents the lowest sum for a set of four primes with this property. Find the lowest sum for a set of five primes for which an..