How can i solve this question using strings?

#1

i’m trying to divide a string containing numbers using an int datatype, but it shows cant divide string by int

int a[i]={2,3,5,7,11,13,17,19,23,29};
string s;
s%a[i];

this code here shows error
can you please share the right code and the logic to how i can divide a string with an integer character without getting an error?

#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.

Intuition :

  • 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.

refer this–> https://ide.codingblocks.com/s/622050

#3
#4

this is my code, im getting an output of 0, but i should be getting 2 can you please tell me what is wrong in my code?

#5

ur code is not checking all potential answers that can be possible…

#6

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