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Overall Editorial

• Official 解説放送 by admin

A - Sigma Cubes

• Official Editorial by sounansya

B - Find Permutation 2

• Official Editorial by sounansya
• User Editorial by shobonvip

C - Rotate and Sum Query

• Official Editorial by sounansya

D - Ulam-Warburton Automaton

• Official Editorial by toam

E - Count Sequences 2

• Official Editorial by toam
• User Editorial by shobonvip
• User Editorial by tatyam

F - Inserting Process

• Official Editorial by toam
• Official 多項式時間解法 by snuke

G - Sum of Min of XOR

• Official Editorial by sounansya