Question

How to arrange numbers on grid to satisfy a minimum condition?

score 114 · Answer 1 · 2026-04-11 14:15:43

114

Views

How to arrange numbers on grid to satisfy a minimum condition?

Published on 11 Apr 2026 - 14:15

score 141 · Answer 2 · 2026-04-10 17:07:03

141

Views

Generating groups without repetition

Published on 10 Apr 2026 - 17:07

score 84 · Answer 3 · 2026-04-10 06:27:56

84

Views

Combinatorial scheduling problem

Published on 10 Apr 2026 - 6:27

score 70 · Answer 4 · 2026-04-14 05:44:36

70

Views

List of 3 unique triplets from a group of 9 where every row is unique as well.

Published on 14 Apr 2026 - 5:44

score 63 · Answer 5 · 2026-04-13 12:18:16

63

Views

What is an efficient non-adaptive group testing scheme if the number of defectives, $d$, grows proportionally to the number of items, $n$?

Published on 13 Apr 2026 - 12:18

score 231 · Answer 6 · 2026-04-15 05:48:42

231

Views

12 players in groups of 4 over 4 games - can they all play together?

Published on 15 Apr 2026 - 5:48

score 87 · Answer 7 · 2026-04-14 04:25:23

87

Views

Subsets of three numbers from a set of n numbers such that no two subsets have a shared pair of numbers

Published on 14 Apr 2026 - 4:25

score 120 · Answer 8 · 2026-04-11 09:33:05

120

Views

Finding 35 sets of size 6 in $A=\{1,\ldots,70\}$ s.t. for each choice of 6 numbers in $A$ there's always a set with intersection of size at least 2

Published on 11 Apr 2026 - 9:33

score 45 · Answer 9 · 2026-04-10 15:18:48

45

Views

How many locks and keys: combinatorics problem

Published on 10 Apr 2026 - 15:18

score 31 · Answer 10 · 2026-04-16 21:46:23

31

Views

6 people playing 8 ball

Published on 16 Apr 2026 - 21:46

score 39 · Answer 11 · 2026-04-13 10:54:12

39

Views

Constructing projective geometries

Published on 13 Apr 2026 - 10:54

score 51 · Answer 12 · 2026-04-15 12:48:45

51

Views

How many distinct combinations of 10 pairs from 20 elements is possible without repetition?

Published on 15 Apr 2026 - 12:48

score 36 · Answer 13 · 2026-04-11 22:37:15

36

Views

Bruck–Ryser–Chowla theorem for $(v,k,\lambda)$ - designs in matrix terms

Published on 11 Apr 2026 - 22:37

score 108 · Answer 14 · 2026-04-13 22:19:22

108

Views

Tournament organization that avoids repetitions

Published on 13 Apr 2026 - 22:19

score 17 · Answer 15 · 2026-05-10 19:57:46

17

Views

How to mathematically prove the "transitive property of nested predictors"?

Published on 10 May 2026 - 19:57

List Question

How to arrange numbers on grid to satisfy a minimum condition?

Generating groups without repetition

Combinatorial scheduling problem

List of 3 unique triplets from a group of 9 where every row is unique as well.

What is an efficient non-adaptive group testing scheme if the number of defectives, $d$, grows proportionally to the number of items, $n$?

12 players in groups of 4 over 4 games - can they all play together?

Subsets of three numbers from a set of n numbers such that no two subsets have a shared pair of numbers

Finding 35 sets of size 6 in $A=\{1,\ldots,70\}$ s.t. for each choice of 6 numbers in $A$ there's always a set with intersection of size at least 2

How many locks and keys: combinatorics problem

6 people playing 8 ball

Constructing projective geometries

How many distinct combinations of 10 pairs from 20 elements is possible without repetition?

Bruck–Ryser–Chowla theorem for $(v,k,\lambda)$ - designs in matrix terms

Tournament organization that avoids repetitions

How to mathematically prove the "transitive property of nested predictors"?

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