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Overall Editorial

• Official 解説放送 by admin
• twitter上で行った簡易な解説 by kyopro_friends

A - Middle Letter

• Official Editorial by nok0
• Official Editorial by admin

B - Modulo Number

• Official Editorial by nok0
• Official Editorial by admin

C - Convex Quadrilateral

• Official Editorial by kyopro_friends
• Official Editorial by admin
• User Editorial by Mitsubachi
• User Editorial by Tomii9273

D - Snuke Panic (1D)

• Official Editorial by kyopro_friends
• Official Editorial by admin

E - Throwing the Die

• Official Editorial by kyopro_friends
• Official Editorial by admin

F - Well-defined Path Queries on a Namori

• Official Editorial by nok0
• Official Editorial by admin
• User Editorial by Kazu1998k

G - Yet Another RGB Sequence

• Official Editorial by nok0
• Official Editorial by admin
• 多変数形式的冪級数を用いた導出 by wasd314
• ユーザ解説 by drken

Ex - Snuke Panic (2D)

• Official Editorial by kyopro_friends
• Official Editorial by admin