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Codeforces 658 D - Unmerge: Intuition and Explanation
Codeforces Round #658 (Div. 2)
Codeforces Round #658 B. Unmerge
Sequential Nim || Codeforces Round #658 || CODEFORCES
A. Common Subsequence || Codeforces Round #658 (Div. 2) || CODEFORCES
#Codeforces Round #658 (Div. 2) #Sequential Nim #problemB
CF Round 657 (Div2) Screencast + Solutions
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Last Updated: September 30, 2026
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Summary
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. Problem A (Common Subsequence)- 00:00 Problem B (Sequential Nim)- 1:05 Problem C (Prefix Flip)- 4:19 Problem D (Unmerge ... Hi guys, My name is Michael Lin and this is my programming youtube channel. I C++ and please message me or on ... I will discuss in detail my approach to the problems