Not able to idenfity the test cases where my code fails

#1

can you check and tell me for which test cases my solution goes wrong

#2

Sure,

But you have share your code for that.
STEPS:

  1. Open Coding Blocks IDE.
  2. Paste your code there.
  3. Save your code.
  4. Share the URL.
#3

https://ide.codingblocks.com/s/105979 this is the code

#4

Your code is failing for a test case like:
Example 1:
2
aaaaaaaaa
Your Output:
4
Expected Output:
9

Example 2:
1
abbaaa
Expected Output:
4
Your Output:
6

Please, review the logic that you are applying.
If you stuck and cannot find a better logic, let me knwo.
hope, this would help.