Jump to content
BrainDen.com - Brain Teasers
  • 0
Sign in to follow this  
superprismatic

Question

This problem is about Reverse Polish Notation (RPN) which is explained at http://en.wikipedia.org/wiki/Reverse_Polish_notation.

Using RPN with operators chosen from the set {+,-,×,÷}, what is the smallest positive integer

which cannot be made from the string of digits 123456789 (in that order) with eight operators

interspersed to make a well-formed RPN expression?

As an RPN example, the string 12+3+4+5+6+7+8+9 evaluates to 45, 123456789++++++++ evaluates to 45,

1234+-5/67××-89++ evaluates to 60, and 123456789-+-+-+-+ evaluates to 1.

Share this post


Link to post
Share on other sites

1 answer to this question

  • 0
Guest   
Guest

This RPN is too complicated to me :wacko:

By the way, the link you posted is misspelled. You need to remove the dot in the end.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

×