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Overall Editorial

• Official 解説放送 by admin
• 3分でA-E by evima
• twitter上で行った簡易な解説 by kyopro_friends

A - Shout Everyday

• Official Editorial by toam
• Official 解説放送 by editorial_admin
• User Editorial by ngtkana
• User Editorial by Kiri8128

B - Cut .0

• Official Editorial by physics0523
• Official 解説放送 by editorial_admin

C - Enumerate Sequences

• Official Editorial by physics0523
• Official 解説放送 by editorial_admin
• User Editorial by suisen
• ユーザ解説 by drken

D - Pedometer

• Official Editorial by physics0523
• Official 解説放送 by editorial_admin
• User Editorial by shobonvip
• User Editorial by ngtkana

E - Permute K times

• Official Editorial by physics0523
• Official 解説放送 by editorial_admin
• O(N) 時間解法 by rsk0315

F - Rearrange Query

• Official Editorial by toam
• Official 解説放送 by editorial_admin
• ハッシュ関数の衝突確率について by noshi91

G - Sum of (XOR^K or 0)

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