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 Tags permutations, combinatorics	0	14
Problem 2487. Create Combination Created by: rifat Tags nchoosek	0	21
Problem 793. Combinations without using nchoosek Created by: Aurelien Queffurust Tags nchoosek, combinations	0	47
Problem 44241. NCHOOSEK - Time Optimization Created by: LY Cao Tags speed optimization, combinations	1	11
Problem 1855. Usage of java.math : N Choose K with unlimited precision Created by: Richard Zapor Tags java, bigdecimal, nchoosek	1	18
Problem 1888. Get ranking of a combination Created by: Doug Hull Tags lexicographic order, combinations, speed optimization	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 Tags perms nchoosek unique	1	30
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 Tags permutations, lottery, buckets	0	12
Problem 1393. A (wrong) place for everything, and everything in its (wrong) place Created by: James Tags organization, permutations	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 Tags permutations, indexing	0	7
Problem 42495. N-th permutation. Created by: Jan Orwat Tags permutations, indexing	0	9

Recent Group Finishers4

Recent Activity

	Athi submitted Solution 2056585 to Problem 1516. Put m balls into n boxes 13 hours and 50 minutes ago
	Athi submitted Solution 2056398 to Problem 604. Next lexicographic - permutation 19 hours and 56 minutes ago
	Athi submitted Solution 2055964 to Problem 42495. N-th permutation. on 12 Dec 2019 at 15:55
	Martin Vatshelle submitted Solution 2038011 to Problem 1147. Possible Outcomes of American Roulette on 28 Nov 2019 at 14:45
	Jean-Marie Sainthillier submitted Solution 2037953 to Problem 604. Next lexicographic - permutation on 28 Nov 2019 at 13:42