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Small Basic - The Happy Number Challenge

As part of LitDev's December Challenges, Nonki suggested this Happy Number challenge:

"Calculate happy numbers below 1000."

  

Read more about Happy Numbers.

Math Man wasted no time in contributing this program:

Math Man's Happy Number Checker (click to try it out!)

Here is what it looks like (just an image):

Now that's a poor, sad number! Bonus points to Math Man for a little humor. =^)

What do you think of the challenge?

   - Tall Basic Ed

Comments

  • Anonymous
    December 17, 2012
    I thought it was a good challenge because the check for happy numbers was recursive, so we had to be able to contain that recursion while still providing the correct answer to whether that was a happy number or not. The 6 smallest happy numbers are 1, 7, 10, 13, 19, and 23.

  • Anonymous
    December 17, 2012
    The comment has been removed

  • Anonymous
    December 17, 2012
    Ed, can you update the program link to smallbasic.com/program It just contains a minor bug fix. Thanks.

  • Anonymous
    December 17, 2012
    Sorry, when I put the link at the end of the sentence, it thought the question mark was part of the link. Here's the link: smallbasic.com/program

  • Anonymous
    December 17, 2012
    Math Man, I updated the link. Thanks!

  • Anonymous
    December 18, 2012
    Ha, Ha, Ha 21122012 - End Of World - is Happy. There is not going to be an end of world. :-)

  • Anonymous
    December 18, 2012
    @Math Man, You could do this app easier. Every digit is an character and the Text.SubString() for every character in text string: power up twice x * x and add to accumulator. Repeat, until accumulator is >=0 and <9. If accumulator = 1: happy, other: sad. accum = 0 string = ... for every charcter in string        accum = accum + (character * character) '''''''''''''''' a character is a single digit, so only it's lenght is 1. end for every string = accum (Small Basic will make a string out of accum) if accum > 9         repeat from the beginning, preserve the string endif if accum < 9  then        if accum = then                     -> HAPPY        else                      ->SAD        endif endif

  • Anonymous
    December 19, 2012
    @ logic thinker Yes. That is actually kind of what I did.

  • Anonymous
    December 20, 2012
    @Math Man Of course, I didn't mean to teach You. :-) But I just wanted to mention that the problem about determining happy numbers is to repeat an action on a sequence until the length of items making the sequence = 1. Happy Holidays!

  • Anonymous
    January 06, 2013
    Logic Thinker, You said, "There is not going to be an end of world." Well, if it ended, would you know you were wrong? =^) Thanks to both of you. Good discussion.