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Overall Editorial

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A - Contest Result

• Official 解説 by yuto1115
• Official Editorial by admin

B - Shift

• Official Editorial by Nyaan
• Official Editorial by admin
• User Editorial by kyopro_friends

C - Round-Robin Tournament

• Official Editorial by nok0
• Official Editorial by admin
• User Editorial by shobonvip

D - Longest Palindrome

• Official Editorial by cn449
• Official Editorial by admin
• ユーザ解説 by drken

E - (K+1)-th Largest Number

• Official Editorial by leaf1415
• Official Editorial by admin