Note: The text editorials will be provided by the authors of the round. This video tutorial acts as an additional resource for those who prefer video over text, not as a substitute for the text editorial.

2171A — Shizuku Hoshikawa and Farm Legs

2171B — Yuu Koito and Minimum Absolute Sum

2171C1 — Renako Amaori and XOR Game (easy version)

2171C2 — Renako Amaori and XOR Game (hard version)

2171D — Rae Taylor and Trees (easy version)

2171F — Rae Taylor and Trees (hard version)

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