Last active
August 29, 2015 14:16
-
-
Save Andsbf/94eae661c9278733b40d to your computer and use it in GitHub Desktop.
Sort array (Bubble sort) Exercise
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
# # Sort the array from lowest to highest | |
def sort_Anderson(arr) | |
# arr.sort #initial code | |
flag =true | |
while flag | |
arr_before = arr.clone | |
arr = check_next(arr) | |
flag = false if arr_before == arr | |
end | |
return arr | |
end | |
def check_next (arr) #buble sort algorithm | |
arr.each_index do |i| | |
unless i+1 == arr.length | |
temp = arr[i] | |
arr[i] = arr[i+1] if arr[i] > arr[i+1] | |
arr[i+1] = temp if arr[i] == arr[i+1] | |
end | |
end | |
return arr | |
end | |
# Find the maximum | |
def maximum(arr) | |
sort_Anderson(arr).last | |
end | |
def minimum(arr) | |
sort_Anderson(arr).first | |
end | |
# expect it to return 42 below | |
result = maximum([2, 42, 22, 02]) | |
puts "max of 2, 42, 22, 02 is: #{result}" | |
# expect it to return 2 below | |
result = minimum([2, 42, 22, 02]) | |
puts "min of 2, 42, 22, 02 is: #{result}" | |
# expect it to return nil when empty array is passed in | |
result = maximum([]) | |
puts "max on empty set is: #{result.inspect}" | |
result = minimum([]) | |
puts "min on empty set is: #{result.inspect}" | |
result = maximum([-23, 0, -3]) | |
puts "max of -23, 0, -3 is: #{result}" | |
result = maximum([6]) | |
puts "max of just 6 is: #{result}" | |
puts "Testing sort algorithm with big array" | |
print "#{sort_Anderson([2312,512,63,23,3,2,6,12,53,56,865,3,2,23,1,5,8,94,2,34,6,53,234,8,34,654,2,])} \n" | |
puts "\n Benchmark Test\n" | |
require 'benchmark' #Add benchmark library | |
array = (1..1000).map { rand(1000) } | |
Benchmark.bmbm do |x| | |
x.report("sort_Anderson") { sort_Anderson(array) } | |
x.report("sort_bult-in") { array.sort } | |
end |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
# # Sort the array from lowest to highest | |
def sort_Anderson(arr) | |
# arr.sort #initial code | |
while true | |
arr_before = arr.clone | |
arr = check_next(arr) | |
break if arr_before == arr | |
end | |
return arr | |
end | |
def check_next (arr) #buble sort algorithm | |
arr.each_index do |i| | |
( arr[i], arr[i+1] = arr[i+1], arr[i] ) if ( arr[i] > arr[i+1] ) unless ( i+1 == arr.length ) | |
end | |
return arr | |
end | |
# Find the maximum | |
def maximum(arr) | |
sort_Anderson(arr).last | |
end | |
def minimum(arr) | |
sort_Anderson(arr).first | |
end | |
# expect it to return 42 below | |
result = maximum([2, 42, 22, 02]) | |
puts "max of 2, 42, 22, 02 is: #{result}" | |
# expect it to return 2 below | |
result = minimum([2, 42, 22, 02]) | |
puts "min of 2, 42, 22, 02 is: #{result}" | |
# expect it to return nil when empty array is passed in | |
result = maximum([]) | |
puts "max on empty set is: #{result.inspect}" | |
result = minimum([]) | |
puts "min on empty set is: #{result.inspect}" | |
result = maximum([-23, 0, -3]) | |
puts "max of -23, 0, -3 is: #{result}" | |
result = maximum([6]) | |
puts "max of just 6 is: #{result}" | |
puts "Testing sort algorithm with big array" | |
print "#{sort_Anderson([2312,512,63,23,3,2,6,12,53,56,865,3,2,23,1,5,8,94,2,34,6,53,234,8,34,654,2,])} \n" | |
puts "\n Benchmark Test\n" | |
require 'benchmark' #Add benchmark library | |
array = (1..1000).map { rand(1000) } | |
Benchmark.bmbm do |x| | |
x.report("sort_Anderson") { sort_Anderson(array) } | |
x.report("sort_bult-in") { array.sort } | |
end |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment