Can someone give hints for solving this question https://www.spoj.com/problems/IVAN/

NaN.

I can only think of an O(n^3) algorithm , but this won't pass.

Need personalized 1-on-1 mentorship?

Upgrade to CommonLounge Plus for text-based one on one mentorship that includes code reviews, feedback on projects, career counseling and much more.

About the author

Sarbjyot Singh