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Overall Editorial

• Official 解説放送 by admin
• 4分でA-G by evima
• twitter上で行った簡易な解説 by kyopro_friends

A - Welcome to AtCoder Land

• Official 解説 by yuto1115
• Official 解説放送 by editorial_admin

B - Ticket Counter

• Official 解説 by yuto1115
• Official 解説放送 by editorial_admin

C - Popcorn

• Official 解説 by yuto1115
• Official 解説放送 by editorial_admin
• ユーザ解説 by drken

D - Souvenirs

• Official Editorial by cn449
• Official 解説放送 by editorial_admin

E - Alphabet Tiles

• Official Editorial by cn449
• Official 解説放送 by editorial_admin
• User Editorial by suisen

F - Easiest Maze

• Official 解説 by yuto1115
• Official 解説放送 by editorial_admin

G - AtCoder Tour

• Official Editorial by cn449
• Official 解説放送 by editorial_admin
• ダイクストラ法を用いた解法 by mymelochan