Error in the code
You are getting segmentation fault on the sample test case only. Dry run your code on that and try to figure out your mistake.
thank you sir, caught the error
Great!!! 
Please mark your doubt as resolved now.
I hope I’ve cleared your doubt. I ask you to please rate your experience here
Your feedback is very important. It helps us improve our platform and hence provide you
the learning experience you deserve.
On the off chance, you still have some questions or not find the answers satisfactory, you may reopen
the doubt.