scottchiang

=begin
I've seen ternary operators before but for some reason, I didn't appreciate it (or try to understand it) until now.  Ternary operators can make if statements look a lot nicer (and shorter).  

Here's an example:
=end

if x % 15 == 0
    return "FizzBuzz"
  else
    return x

scottchiang

def is_fibonacci?(i)
  ary=[]
  (1..100).inject([0]) {|ary, x| x>1? ary<< ary[-1]+ary[-2] : ary << 1}
  ary.include?(i)
end

scottchiang

rvm rubies

   ruby-1.8.7-p370 [ i686 ]
   ruby-1.9.2-p320 [ x86_64 ]
=* ruby-1.9.3-p194 [ x86_64 ]

# => - current
# =* - current && default
#  * - default

scottchiang

def ninety_nine_bottles(num)
  while num>=0
    if num == 0
      puts "No more bottles of beer on the wall :/"
      break
    else
    puts "#{num} bottles of beer on the wall"
    puts "#{num} bottles of beer"
    puts "Take one down, pass it around"
    puts "#{num-1} bottles of beer on the wall"

scottchiang

Script: CONVERT EVERY OTHER LETTER OF A SENTENCE TO CAPITAL LETTERS

GET a sentence from user input
IF the sentence starts with a capital letter, don't change it
ELSE convert every other letter to capital letters
ENDIF
PRINT the formatted sentence

scottchiang

# Script: Covert sentences
# 
# GET a sentence from user input. 
# IF the sentence length is greater than 20, randomize the sentence
# ELSE take the 2nd letter of each word and change it to the letter P
# ENDIF
# PRINT the new sentence

def pseudocode
  puts "Type in a sentence:"

scottchiang

def convert_to_hash
  data_table = []
  #data_table[0] = ["Number", "Name", "Position", "Points per Game"]
  data_table[0] = ["12", "Joe Schmo", "Center", "[14, 32, 7, 0, 23]"]
  data_table[1] = ["9", "Ms. Buckets", "Point Guard", "[19, 0, 11, 22, 0]"]
  data_table[2] = ["31", "Harvey Kay", "Shooting Guard", "[0, 30, 16, 0, 25]"]
  data_table[3] = ["18", "Sally Talls", "Power Forward", "[18, 29, 26, 31, 19]"]
  data_table[4] = ["22", "MK BiBoux", "Small Forward", "[11, 0, 23, 17, 0]"]
  
  hash_data_table = []

scottchiang

# SCRIPT: PICK UP GOLD
# 
# Iteration One: PICK UP THE GOLD
# 
# READ grid containing position of gold and rock
# SET starting position to 0,0
# SET an empty sachel
# WHILE y position is less than height of grid
# IF current position has gold
# THEN add gold to sachel and set content of current position to rock

scottchiang

#linear search

def linear_search(object, array)
  index = 0
  
  while array[index] != nil
    if object != array[index]
      mismatch += 1
    end
    if object == array[index]

scottchiang

def binary_search(obj, array, lower = 0, upper = array.length)
  mid_point = ((upper - lower) / 2) + lower
  if obj != array[mid_point] && (mid_point == array.length - 1 || mid_point == 0)
      return -1
  elsif obj == array[mid_point]
    return mid_point
  elsif obj < array[mid_point]
    binary_search(obj, array, lower, mid_point)
  elsif obj > array[mid_point]
    binary_search(obj, array, mid_point, upper)