tutor does not has good teaching skills
Not able to understand this lecture . the tutor was himself confused
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Hey @Arjun-Verma-2245487798874587
With all due respect he is one of the finest tutors at coding blocks with over 3 years of teaching experience. You may mail at [email protected] for additional support.
https://codeforces.com/blog/entry/67511 here is the official codeforces solution.
If your doubt is resolved please mark it as closed.