given a word, print its index, words can be increased accordingly

Question

Imagine an alphabet of words.

Example:

 a ==> 1 
 b ==> 2 
 c ==> 3 

 z ==> 26 
 ab ==> 27 
 ac ==> 28 

 az ==> 51 
 bc ==> 52         


        

Answer 1

Base 26 numbering system. I would suggest you look at octal, decimal and hexadecimal numbering systems once you understand how to figure out convert any of them to decimal you will know this one too.