Cody

# Combinatorics I

Curated by : goc3

Why isn't it k choose n or k choose m or n choose m or ...?
Combinatorics I Master

+50 points

Problem Title Likes Solvers

#### Problem 577. Repopulate the City

Created by: Ned Gulley

Tags factors

3

17

#### Problem 604. Next lexicographic - permutation

Created by: Muthu Annamalai

0

13

#### Problem 2487. Create Combination

Created by: rifat

Tags nchoosek

0

21

#### Problem 793. Combinations without using nchoosek

Created by: Aurelien Queffurust

0

47

#### Problem 44241. NCHOOSEK - Time Optimization

Created by: LY Cao

1

11

#### Problem 1855. Usage of java.math : N Choose K with unlimited precision

Created by: Richard Zapor

1

18

#### Problem 1888. Get ranking of a combination

Created by: Doug Hull

0

30

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

Created by: Doug Hull

Tags speed

0

16

#### Problem 1516. Put m balls into n boxes

Created by: Binbin Qi

1

29

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

Created by: Binbin Qi

Tags nchoosek

1

29

#### Problem 1388. Numbered lottery balls into cells

Created by: James

0

12

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

Created by: James

0

17

#### Problem 1147. Possible Outcomes of American Roulette

Created by: Robert Turner

Tags payout, gamble, odds

0

61

#### Problem 42494. Which permutation is it?

Created by: Jan Orwat

0

7

#### Problem 42495. N-th permutation.

Created by: Jan Orwat

0

8

#### Recent Activity

 on 28 Nov 2019 at 14:45 on 28 Nov 2019 at 13:42 on 28 Nov 2019 at 12:12 on 14 Nov 2019 at 8:07 on 9 Oct 2019