MathDB
CMO 2019, senior, P1

Source: Caucasus mathematical olympiad 2019

March 23, 2019
combinatoricsKvant

Problem Statement

Pasha placed numbers from 11 to 100100 in the cells of the square 1010 × 1010, each number exactly once. After that, Dima considered all sorts of squares, with the sides going along the grid lines, consisting of more than one cell, and painted in green the largest number in each such square (one number could be colored many times). Is it possible that all two-digit numbers are painted green?
Bragin Vladimir