Combinatorics I

Curated by : goc3

<div style = "text-align: start; line-height: normal; min-height: 0px; white-space: normal; color: rgb(0, 0, 0); font-family: Menlo, Monaco, Consolas, monospace; font-style: normal; font-size: 14px; font-weight: 400; text-decoration: none solid rgb(0, 0, 0); white-space: normal; "><div style="display: block; min-width: 0px; padding-top: 0px; perspective-origin: 289.5px 10.5px; transform-origin: 289.5px 10.5px; "><div style="font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-bottom: 9px; margin-left: 4px; margin-right: 10px; margin-top: 2px; text-align: left; white-space: pre-wrap; perspective-origin: 266.5px 10.5px; transform-origin: 266.5px 10.5px; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="display: inline; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 0px 0px; transform-origin: 0px 0px; "><span style="">Why isn't it k choose n or k choose m or n choose m or ...?</span></span></div></div></div>

Combinatorics I Master

+50 points

Problem Title	Likes	Solvers
Problem 577. Repopulate the City Created by: Ned Gulley Tags factors	4	23
Problem 604. Next lexicographic - permutation Created by: Muthu Annamalai Tags combinatorics, permutations	1	22
Problem 2487. Create Combination Created by: rifat Tags nchoosek	1	35
Problem 793. Combinations without using nchoosek Created by: Aurelien Queffurust Tags nchoosek, combinations	0	74
Problem 44241. NCHOOSEK - Time Optimization Created by: LY Cao Tags combinations, speed optimization	1	30
Problem 1855. Usage of java.math : N Choose K with unlimited precision Created by: Richard Zapor Tags nchoosek, java, bigdecimal	1	24
Problem 1888. Get ranking of a combination Created by: Doug Hull Tags combinations, speed optimization, lexicographic order	1	40
Problem 1889. Get ranking of a combination looking for speed. Created by: Doug Hull Tags speed	1	26
Problem 1516. Put m balls into n boxes Created by: Binbin Qi Tags perms nchoosek unique	1	40
Problem 1517. Put m balls into n boxes (again) Created by: Binbin Qi Tags nchoosek	1	37
Problem 1388. Numbered lottery balls into cells Created by: James Tags permutations, lottery, buckets	0	15
Problem 1393. A (wrong) place for everything, and everything in its (wrong) place Created by: James Tags permutations, organization	1	22
Problem 1147. Possible Outcomes of American Roulette Created by: Robert Turner Tags gamble, payout, odds	0	83
Problem 42494. Which permutation is it? Created by: Jan Orwat Tags indexing, permutations	1	12
Problem 42495. N-th permutation. Created by: Jan Orwat Tags indexing, permutations	1	13

Recent Group Finishers8

Recent Activity

	Doan Quang Manh submitted Solution 6095753 to Problem 793. Combinations without using nchoosek on 12 Jul 2021 at 9:26
	Doan Quang Manh submitted Solution 6095723 to Problem 44241. NCHOOSEK - Time Optimization on 12 Jul 2021 at 9:22
	Lincoln Poon submitted Solution 6034743 to Problem 577. Repopulate the City on 30 Jun 2021
	Lincoln Poon submitted Solution 6032713 to Problem 2487. Create Combination on 29 Jun 2021
	Lincoln Poon submitted Solution 6032613 to Problem 1889. Get ranking of a combination looking for speed. on 29 Jun 2021

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