OPM 2012 Problem 1
- Final day 1
A five-digit positive integer ( ) is said to be a range if its digits satisfy the inequalities . For example, is a range. How many ranges are there?
Dataset text AI-MO AoPS. Quoted with source.
Official text: Portuguese Mathematical Olympiad 2012 official paper, page 1.
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.