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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 - Shampoo

• Official Editorial by kyopro_friends
• Official 解説放送 by editorial_admin

B - Hit and Blow

• Official Editorial by Nyaan
• Official 解説放送 by editorial_admin

C - Collision 2

• Official Editorial by Nyaan
• Official 解説放送 by editorial_admin

D - Moves on Binary Tree

• Official Editorial by kyopro_friends
• Official 解説放送 by editorial_admin

E - Edge Deletion

• Official Editorial by Nyaan
• Official 解説放送 by editorial_admin

F - Lottery

• Official Editorial by kyopro_friends
• Official 解説放送 by editorial_admin
• User Editorial by Kazu1998k

G - Sqrt

• Official Editorial by kyopro_friends
• Official 解説放送 by editorial_admin

Ex - Builder Takahashi (Enhanced version)

• Official Editorial by Nyaan
• Official 解説放送 by editorial_admin
• User Editorial by maspy