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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 - New Generation ABC

• Official Editorial by KoD
• Official 解説放送 by editorial_admin
• ユーザ解説 by drken

B - How many?

• Official Editorial by blackyuki
• Official 解説放送 by editorial_admin
• User Editorial by hamayanhamayan

C - Distribution

• Official Editorial by blackyuki
• Official 解説放送 by editorial_admin
• User Editorial by idsigma
• User Editorial by hamayanhamayan
• User Editorial by kyopro_friends
• User Editorial by kanpurin

D - Sum of Maximum Weights

• Official Editorial by KoD
• Official 解説放送 by editorial_admin
• User Editorial by hamayanhamayan

E - Packing Under Range Regulations

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

F - Substrings

• Official Editorial by blackyuki
• Official 解説放送 by editorial_admin
• User Editorial by hamayanhamayan

G - Three Permutations

• Official Editorial by KoD
• Official 解説放送 by editorial_admin
• User Editorial by miscalculation53

H - Collecting

• Official Editorial by KoD
• Official 解説放送 by editorial_admin
• User Editorial by kanpurin