please give me an approach to solve this problem
i tried
1.summing all values from m to n
i think we have to calculate sum till nth term and subract sum till m-1th term
tellme an approach please
Not able to solve
I will recommend you to first solve this question and then do version II.
You will know a lot of things.
I have already done basic problems on matrix exponentiation and this problem also.In fibosum we were able to derive a simple formula but cannot do that for this case
Yes your approach is correct, you have to find sum till nth and then subtract (m-1)th from that.
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.