How is output of sample test case is 2?can u explain

#1

how is output of sample test case is 2?can u explain

#2

Hello @shakul,

In the question you have to find the maximum number of CB numbers that you can form from the input:
In the Sample Testcase:
5
81615
There are at max two CB numbers that we can form:

  1. 61
  2. 5
    Thus, the output is 2.

Hope, this would help.
If you still have any issue, feel free to ask.
Give a like if you are satisfied.