From: Harry Kakueki <list.push@...>
Date: 2011-10-22T23:46:55+09:00
Subject: Re: power of 2 code

> Rewrite this last program so that the computer asks for the maximum
> number and the program computes the corresponding power of two.
>
> Enter maximum value:
> 124123
> 2^17 =131072 is the highest power of 2 less than 124123
>

Loops can be confusing sometimes.
This won't help you with the loops because it doesn't have loops.
But, maybe it can still be helpful.
Or, not. :)
If the puts statement is confusing, then do it your way.
(number-1).to_s(2).size-1 is the exponent.


#########


puts "Enter a maximum value: "
number = gets.chomp.to_i

puts "2^#{(number-1).to_s(2).size-1}" if number >= 1



Harry