Sungchul Park fupfin

fupfin / .editorconfig

Last active January 27, 2024 05:08

My default coding style

fupfin / HashCodeFunctions.java

Last active March 10, 2018 15:33

	import java.util.Arrays;

	public class HashCodeFunctions
	{
	private final static short DEFAULT_PRIME_NUMBER = 31;

	private HashCodeFunctions()
	{
	throw new AssertionError("Could not be instantiated.");
	}

fupfin / MapBuilder.java

Created June 16, 2015 11:31

Simple map builder for java using Tuple class I've made before (https://gist.github.com/fupfin/2299564)

	package fupfin;

	import static fupfin.Tuples.*;

	import java.util.*;
	import java.util.concurrent.ConcurrentHashMap;

	public class MapBuilder<K, V> {

	private Map<K, V> map = new ConcurrentHashMap<K, V>();

fupfin / Schwartz.java

Last active August 29, 2015 14:12

Schwartz Transform Java 8 Version

	import java.util.List;
	import java.util.function.Function;
	import java.util.stream.Collectors;

	import org.javatuples.*;


	public class Schwartz {
	public static <T> List<T> transform(List<T> list, Function<T, Integer>fn) {
	return list.stream()

fupfin / count-change.clj

Created December 29, 2014 03:39

	(defn count-change-for-us [amount] (count-change amount [1 5 10 25 50]))

	(defn count-change [amount coins]
	(cond (= amount 0) 1
	(< amount 0) 0
	(empty? coins) 0
	:else (+ (count-change (- amount (first coins)) coins)
	(count-change amount (rest coins)))
	))

fupfin / ChangeCounter.java

Created December 23, 2014 05:00

	public class ChangeCounter {

	int cents[] = { 50, 25, 10, 5, 1 };

	public int count(int amount) {
	return count(amount, 0);
	}

	private int count(int amount, int idx) {
	if (amount == 0) {

fupfin / MinSumCombination.scala

Created December 8, 2014 12:09

최소값 조합 찾기

	object MinSumCombination {

	def findMin(nums: Array[Int]): Int = {
	val result = tryCombinations(nums, 0)
	if (result < Int.MaxValue) result else -1
	}

	private def tryCombinations(nums: Array[Int], fixPos:Int): Int = {
	//println((nums).mkString(","))
	if(fixPos >= nums.length - 1) Int.MaxValue

fupfin / Base64.groovy

Last active August 29, 2015 14:10

	package com.fupfin.groovybase64

	import java.nio.ByteBuffer

	class Base64 {

	static RAW_CHUNK_SIZE = 3
	static ENC_CHUNK_SIZE = 4

	static encChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".getBytes()

fupfin / GeneratorDemo.java

Created June 19, 2014 05:29

	import static java.lang.System.out;
	import com.google.code.jyield.*;

	public class GeneratorDemo {
	public static void main(String args[]) {
	for(int n: YieldUtils.toIterable(take(25, sequenceOf(integers()))))
	out.println(n);
	}

	public static Generator<Integer> take(int count, Generator<Integer> source) {

fupfin / pom.xml

Created October 24, 2013 04:18

	<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>org.springframework.samples</groupId>
	<artifactId>myfirstspring</artifactId>
	<version>0.0.1-SNAPSHOT</version>

	<properties>

	<!-- Generic properties -->