how to approach this problem i mean how to create sets which are disjoint
Finding CB Numbers
Hey @poojadas408
As to work on substrings of the given number, we will capture the element into the String instead of integer .
The number ānā given is nothing to do with our approach(as we are working on String) but can be useful according to your approach.
Intuition to solve this problem:
Put loop on string that will give substring of every length.
create a function that will return true if the passed number is a CB number otherwise return false.
To put a check if the digit is already a part of the any other CB number, create an boolean array say, valid which store which digits till now has been a part of any other CB number.
Take a counter and increment if a CB number is found.
At the end print the count.
Here for your reference i am attacing the code:
if you have any doubt you can ask here