MathDB
change numbers in 3x3 table - Portugal OPM 2000 p1

Source:

May 18, 2024
algebracombinatorics

Problem Statement

Consider the following table where initially all squares contain zeros: \begin{tabular}{ | l | c | r| } \hline 0 & 0 & 0 \\ \hline 0 & 0 & 0 \\ \hline 0 & 0 & 0 \\ \hline \end{tabular} To change the table, the following operation is allowed: a 2×22 \times 2 square formed by adjacent squares is chosen, and a unit is added to all its numbers. Complete the following table, knowing that it was obtained by a sequence of permitted operations \begin{tabular}{ | l | c | r| } \hline 14 & & \\ \hline 19 & 36 & \\ \hline & 16 & \\ \hline \end{tabular}