sortedP.rb

def sorted(a)
    temp = nil
    a.each do |e|
        puts 'temp is: ' + temp.to_s + ' current element is ' + e.to_s
        if !temp
            temp = e
        elsif temp > e
            return false
        else
            temp = e
        end
    end
    puts "returns true" + a.to_s
    return true
end

###
Example test:   [1, 5, 3, 3, 7]
Output (stderr):
user.rb:24:in `>': comparison of Fixnum with nil failed (ArgumentError)
	from user.rb:24:in `block in sorted'
	from user.rb:20:in `each'
	from user.rb:20:in `sorted'
	from user.rb:9:in `block in solution'
	from user.rb:8:in `combination'
	from user.rb:8:in `each'
	from user.rb:8:in `solution'
	from user.rb:141:in `<main>'
Output:
temp is:  current element is 1
temp is: 1 current element is 5
temp is: 5 current element is 3
temp is:  current element is 1
temp is: 1 current element is 
RUNTIME ERROR (tested program terminated unexpectedly) 
###