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Last Updated: October 19, 2026
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I will discuss in detail my approach to the problems CODE : ************************************************************ Problem A (Common Subsequence)- 00:00 Problem B (Sequential Nim)- 1:05 Problem C (Prefix Flip)- 4:19 Problem D (Unmerge ... Video Editorial of C2. Prefix Flip (Hard Version) of Problems were great but my performance was pretty bad. I was able to solve A - C2 but was unable to make the observation for D.
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