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package scala.euler

/*
 * Task: http://projecteuler.net/problem=1
 * Description: Find the sum of all the multiples of 3 or 5 below 1000.
 */

class ArrayFilter(n: Int) {
  val preparedArray = Array.range(1, n)

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class Array
  def selection_sort
    (0...length).each do |i|
      min = i
      
      (i+1...length).each do |j|
        min = j if self[j] < self[i]
      end
      self[i], self[min] = self[min], self[i]
    end

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def isAnagramOfPalindrome (s)
  return 0 if s.length < 2 # no need to check 1 or 0 character words
  
  # # returns letters in hash 
  # f.e. "aabcba" ===> {"c"=>["c"], "b"=>["b", "b"], "a"=>["a", "a", "a"]}
  letters = s.split("").group_by{|x| x} 

  # selects these arrays where size is odd and checks if it's empty
  return 1 if letters.select{|key,value| value.length % 2 != 0 }.empty?
  return 0 # return for clarity

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class Queue
  def initialize(val)
    @head = Container.new(val)
  end
  
  def add(val)
    temp = Container.new(val)
    head = @head
    loop do
      break unless head.next

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class Complex
  def initialize(_re = 0.0, _im = 0.0)
    self.re = _re
    self.im = _im
  end
  
  def +(val)
    Complex.new(self.re + val.re, self.im + val.im)
  end
  

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module Models
  module DateScope
    extend ActiveSupport::Concern

    included do
      default_scope order('date_start ASC')
    end

    module ClassMethods
      #== Some more methods

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function Test() {
  this.nazwa = "test";
}

Test.prototype.a = function() {
  console.log(this.nazwa);
  return "lol";
}

Test.prototype.b = function() { 

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class Fraction
  @numerator, @denominator = 0,0
  def initialize(n = 0,d = 0)
    @numerator, @denominator = n, d
  end
  def read
    @numerator, @denominator = gets.chomp, gets.chomp
  end
  def write
    puts "#{@numerator} / #{@denominator}"

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.btn-warning {
  background-color: #faa732;
  background-image: -moz-linear-gradient(top, #fbb450, #f89406);
  background-image: -ms-linear-gradient(top, #fbb450, #f89406);
  background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#fbb450), to(#f89406));
  background-image: -webkit-linear-gradient(top, #fbb450, #f89406);
  background-image: -o-linear-gradient(top, #fbb450, #f89406);
  background-image: linear-gradient(top, #fbb450, #f89406);
  background-repeat: repeat-x;
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fbb450', endColorstr='#f89406', GradientType=0);