facade_combinatorics/
facade_combinatorics.rs1use use_math::{combinations, factorial, permutations};
2
3fn main() -> Result<(), use_math::CombinatoricsError> {
4 assert_eq!(factorial(5)?, 120);
5 assert_eq!(permutations(5, 3)?, 60);
6 assert_eq!(combinations(5, 2)?, 10);
7
8 Ok(())
9}