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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 - Probably English

• Official Editorial by physics0523
• Official Editorial by admin
• User Editorial by Tomii9273

B - Bombs

• Official 解説 by yuto1115
• Official Editorial by admin
• 原案者の実装 by evima

C - Socks

• Official 解説 by yuto1115
• Official Editorial by admin
• ユーザ解説 by drken

D - Three Days Ago

• Official Editorial by physics0523
• Official Editorial by admin
• User Editorial by cirno3153

E - Kth Number

• Official 解説 by yuto1115
• Official Editorial by admin
• 式の機械的な方法での導出 by Kazu1998k

F - substr = S

• Official Editorial by physics0523
• Official Editorial by admin
• User Editorial by yfuka86
• User Editorial by kyopro_friends

G - Minimum Reachable City

• Official 解説 by yuto1115
• Official Editorial by admin

Ex - E or m

• Official Editorial by physics0523
• Official Editorial by admin
• 素朴な実装 by evima