Https://hack.codingblocks.com/contests/c/537/100

#1

https://hack.codingblocks.com/contests/c/537/100
please can anyone provide some hint regarding it…

#2

According to the Problem the work is to find the Max CB numbers from the given number.

  • As to work on substrings of the given number, we will capture the element into the String instead of integer .

  • The number ‘n’ given is nothing to do with our approach(as we are working on String) but can be useful acoording to your approach.

  • 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.