Pls help me solve this... learning slowly

Question

Jumping numbers
https://code.sololearn.com/cYPcRW5wQrVN/?ref=app

Answer 1

What help you need ?

Answer 2

Have you tried to run it in in any other compiler?

Answer 3

I'm getting core dumped...how to avoid that 🥺

Answer 4

Yes I solved my mistake
In the while loop after some iterations
My variable b was not being assigned
Because of no elements in the stack
Thanks to debug option in other platforms 🥳