RO-TST 2013 Problem 14

Given an integer $n\geq 2$ , determine all non-constant polynomials $f$ with complex coefficients satisfying the condition $1+f(X^n+1)=f(X)^n.$

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.