A classic problem from the 1982 Soviet Mathematical Olympiad
16:18
Romanian Mathematical Olympiad Problem
18:42
New Zealand Mathematical Olympiad 2019 Question 5
13:47
Hardy's Integral
22:38
Solving a crazy iterated floor equation.
14:15
Functional Equation
24:20
Too hard for the IMO? Too easy?
14:47
THE FACT
22:03