Problems

1 – 15 of 15

Problem Title Likes Solvers Difficulty

Problem 44241. NCHOOSEK - Time Optimization

Created by: LY Cao

Tags combinations, speed optimization

Problem 1516. Put m balls into n boxes

Created by: Binbin Qi

Tags perms nchoosek unique

Problem 577. Repopulate the City

Created by: Ned Gulley

Tags factors

Problem 1517. Put m balls into n boxes (again)

Created by: Binbin Qi

Tags nchoosek

Problem 1888. Get ranking of a combination

Created by: Doug Hull

Tags combinations, speed optimization, lexicographic order

Problem 2487. Create Combination

Created by: rifat

Tags nchoosek

Problem 604. Next lexicographic - permutation

Created by: Muthu Annamalai

Tags combinatorics, permutations

Problem 1393. A (wrong) place for everything, and everything in its (wrong) place

Created by: James

Tags permutations, organization

Problem 1889. Get ranking of a combination looking for speed.

Created by: Doug Hull

Tags speed

Problem 42494. Which permutation is it?

Created by: Jan Orwat

Tags indexing, permutations

Problem 42495. N-th permutation.