olymmath

IR-TST 2019 Problem 1

  • Test 1

A table consisting of 55 columns and 3232 rows, which are filled with zero and one numbers, are "varied", if no two lines are filled in the same way. On the exterior of a cylinder, a table with 3232 rows and 1616 columns is constructed. Is it possible to fill the numbers cells of the table with numbers zero and one, such that any five consecutive columns, table 32×532\times5 created by these columns, is a varied one?

Proposed by Morteza Saghafian

Dataset text AI-MO AoPS. Quoted with source.

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