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ITOT 41 Spring 2020 - THCS O - Additive practice Question 1

ITOT · ITOT 41 Spring 2020 - THCS O - Additive practice

Question 1

Squareland is a6-by 6 grid. Each cell is either a kingdom or a disputed territory; there are 27 kingdoms and 9 disputed territories. A kingdom claims a disputed cell exactly when it shares a side or a vertex with it. Can the nine disputed cells all have different numbers of claimants?