NL-NWO 2002 Problem 3
and are points in the plane with integer coordinates. The lengths of the sides of triangle are integer numbers. Prove that the perimeter of the triangle is an even number.
Dataset text AI-MO AoPS. Quoted with source.
Solutions
No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.
Similar problems
These problems have the most words in common with this statement.