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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 - Saturday

• Official Editorial by KoD
• Official Editorial by admin

B - Split?

• Official Editorial by KoD
• Official Editorial by physics0523
• Official Editorial by admin
• User Editorial by rsk0315

C - Index × A(Continuous ver.)

• Official Editorial by PCTprobability
• Official Editorial by admin
• User Editorial by rsk0315

D - Index × A(Not Continuous ver.)

• Official Editorial by PCTprobability
• Official Editorial by admin

E - Erasing Vertices 2

• Official Editorial by PCTprobability
• Official Editorial by admin
• User Editorial by kyopro_friends

F - Exactly K Steps

• Official Editorial by KoD
• Official Editorial by admin
• User Editorial by Mitsubachi

G - Increasing K Times

• Official Editorial by KoD
• Official Editorial by admin
• User Editorial by tokusakurai
• User Editorial by kyopro_friends

Ex - Odd Sum

• Official Editorial by PCTprobability
• Official Editorial by PCTprobability
• Official Editorial by admin
• User Editorial by kyopro_friends
• 巡回畳み込みによる解法 by ganmodokix