Fast fibonacci number

#1


here is my code I just used the concept of Codeforce hack
it must work fine in O(logn) time but my code showing TLE why?

#2

@Love
Use unordered_map instead of map
Please close this doubt

#3

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.