From: Faith Tarcha <faith@...>
Date: 2012-02-08T20:20:49+09:00
Subject: Count the numbers in a loop

Hello everyone, I have this code. You type in a number and then it
identifies odd and even numbers. When it identifies an odd number, it
will multiply it by three plus one. When It identifies an even number,
it will divide it by 2. This will go infinitely until it reaches number
1, then the loop will stop.

Does anyone know how to make it count all the numbers that appear on the
screen (until the loop stops at number 1)? I have tried everything in
the last 2 days.. but so far not being successful.

Thank you


This is the code:

def f n # this function calculates next number in your sequence
 if n % 2 == 0 # n is even
   return n / 2
 else
   return n * 3+1
 end
end


num = gets.to_i # read in a number
while num > 1 # infinitely...
 num = f(num) # find the next number
 puts num # print it
 sleep 1 # wait one second
end

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