Janick Reynders janickr

janickr / Transducers.java

Created October 11, 2014 21:42

Transducers in java. An exercise based on http://phuu.net/2014/08/31/csp-and-transducers.html

	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.Collection;
	import java.util.List;
	import java.util.function.BiFunction;
	import java.util.function.Function;
	import java.util.function.Predicate;

	public class Transducers {
	static interface Reducer<Something, Input> extends BiFunction<Something, Input, Something> {}

janickr / Combinators.java

Created September 16, 2014 18:25

java 8, inspired by https://speakerdeck.com/raganwald/javascript-combinators


	import java.util.List;
	import java.util.function.BiFunction;
	import java.util.function.Function;

	import static java.util.Arrays.asList;

	public class Combinators {

	public static <A, B, R> BiFunction<B, A, R> flip(BiFunction<A, B, R> fn) {

janickr / conway.sql

Last active September 10, 2020 21:49

conway's game of life in SQL (postgresql) - http://en.wikipedia.org/wiki/Conway%27s_Game_of_Life

	with recursive generation1(x,y) as ( --the initial board setup
	select 2, 3
	union
	select 3, 3
	union
	select 4, 3
	),
	game(n, x, y) as (
	select 1, x, y from generation1 -- generation 1 is initial board setup
	union all