Problem

Source: Kyiv City MO 2025 Round 1, Problem 9.2, 10.2

Tags: combinatorics, arrangement



Can the numbers from \( 1 \) to \( 2025 \) be arranged in a circle such that the difference between any two adjacent numbers has the form \( 2^k \) for some non-negative integer \( k \)? For different adjacent pairs of numbers, the values of \( k \) may be different. Proposed by Anton Trygub