Not a simple sum!!!!

general
1

i am trying this question from past few days but it keeps getting TLE.Even the previous solutions are hard to understand.any kind of help is appreciated.Thanks in advanced…
https://www.codechef.com/problems/H4

2

vijju123

3

Pay attention to m.

Solution time complexity is O(min(n, m)).

Use geometric series.

PS: I guess you made a mistake in name of this problem. It’s “Just a simple sum”

4

I havent solved that question yet dear. Perhaps taran can help you at this one :slight_smile:

5

Someone has already explained a replica of this problem, SEQUA Problem - CodeChef

https://discuss.codechef.com/questions/106804/can-someone-provide-me-solution-of-suhana-and-equation/106813

6

The constraints of SEQUA are much more loose and so, even strange solutions like CodeChef: Practical coding for everyone can pass… (Scroll down to the bottom of the solution XD)