kaiguogit

# Find the maximum 
def maximum(arr)
  arr.inject(arr[0]) do |sum,a| 
    a > sum ? a : sum
  end
end

# expect it to return 42 below
result = maximum([2, 42, 22, 02])
puts "max of 2, 42, 22, 02 is: #{result}"

kaiguogit

def fizzbuzz(startnumber,endnumber)
  #check input for Fixnum
  if !(startnumber.is_a?(Fixnum) && endnumber.is_a?(Fixnum))
    puts "invalid input"
    return nil
  end

  #check start number is smaller than end number
  if startnumber > endnumber
    puts "Start number #{startnumber} is greater than end number #{endnumber}, reverting the loop"

kaiguogit

# must be baller and either furnished or rent cheaper than 2100
def rent?(furnished, rent, baller)
 baller && (furnished || rent < 2100)
end

###
# Add your "test" ("driver") code below in order to "test drive" (run) your method above...
# The test code will call the method with different permutations of options and output the result each time.
# This way, you will be able to run the renter.rb file from the CLI and look at the output of your "tests" to validate if the method works.
# Without the test code, it will be hard for you to know if this method is working as it should or not.

kaiguogit

# Save this file to your computer so you can run it 
# via the command line (Terminal) like so:
#   $ ruby shakil_the_dog.rb
#
# Your method should wait for user input, which corresponds
# to you saying something to your dog (named Shakil).
 
# You'll probably want to write other methods, but this 
# encapsulates the core dog logic
def shakil_the_dog

kaiguogit

require 'benchmark'

# Sort the array from lowest to highest
def sort(arr)
  #bubble sort
  return arr if arr.length <= 1
  sorted = true
  while sorted
   sorted = false
   (arr.length-1).times do |i|

kaiguogit

def get_quote(dimensions, colour)
  (dimensions * 15 + (colour > 2 ? colour * 15 : colour * 10))*1.15
end
puts "#{get_quote(10, 3)}"

kaiguogit

def merge_sort(arr)
  return arr if arr.length <=1
  left = []
  right = []
  arr.each_index do |index|
    index.odd? ? left.push(arr[index]) : right.push(arr[index])  
  end

  left = merge_sort(left)
  right = merge_sort(right)

kaiguogit

list = {'yvr' => 'Vancouver', 'yba' => 'Banff', 'yyz' => 'Toronto', 'yxx' => 'Abbotsford', 'ybw' => 'Calgary'}

# Why is it returning nil instead of first element of the list above
p list["yvr"]

kaiguogit

# def count_letters(str)
#   count={}
#   str.strip.each_char do |char|
#     count[char] = 0 unless count.include?(char)
#     count[char] += 1
#   end
#   count
# end

def count_letters(str)

kaiguogit

require "pry-byebug"
@states = {
  OR: ['Oregon',['Salem', 'Portland']],
  FL: ['Florida',['Tallahassee','Jacksonville']],
  CA: ['California',['Sacramento','Los Angeles']],
  NY: ['New York',['Albany','New York']],
  MI: ['Michigan',['Lansing', 'Detroit']],
  WA: ['Wahsington',['Olympia','Seattle']],
  IN: ['Indiana',['Boise']]
}