jremmen

Queens = function(num) {

	function range(n) {
		return Array.apply(null, new Array(n)).map(function(_, i) { return i; });
	};

	function is_safe(q, qs) {
		if(qs.length == 0) return true;
		return qs.filter(function(x, i) {
			return Math.abs(q - x) != Math.abs(qs.length - (qs.length - (i + 1)));

jremmen

prime_factorization = function(n) {
	var i = 2;
	var factors = [];
	while (n > 0 && i <= n) {
		while (n % i == 0) {
			factors.push(i);
			n = n / i;
		}
		i++;
	}

jremmen

function diff(a, b) {
	return _operation(a, b, [], diff, true)
}

function union(a, b) {
	return _operation(a, b, b, union, true)
}

function intersect(a, b) {
	return _operation(a, b, [], intersect)

jremmen

var Iterator = function(m, n) {
  this.start = m;
  this.end = n || Infinity;
  this.step = 1;
  this.current = this.start;
  this.queue = new IteratorQueue();

  this.next = function() {
    var c = this.current;
    this.current += this.step;

jremmen

module Generators
  module Utils
    def self.included(other)
      other.extend(ModuleMethods)
    end

    module ModuleMethods
      def arbitrary
        @arbitrary ||= {}.tap do |o|
          o[Integer] = ->{Random.rand(-1e+10..1e+10).to_i}