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4x4 Grid Sum Constraint

1550AdeptCombinatoricsAlgebra

Olimpiadi di Matematica - Febbraio

Marina riempie le caselle di una griglia $4 \times 4$ scrivendo dentro ciascuna il numero $1$, il numero $2$ o il numero $3$. Quanti sono i modi di riempire la griglia tali che la somma di ogni riga e la somma di ogni colonna siano divisibili per $3$? (A) $3^{8}-1$ (B) $3^{8}$ (C) $2 \cdot 3^{8}$ (D) $3^{9}$ (E) Nessuna delle precedenti
0 students attempted0% solvedRating 1550

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