Question

Number of ways to pick an equal number of elements from two sets?

score 290 · Answer 1 · 2026-04-14 07:29:53

290

Views

Number of ways to pick an equal number of elements from two sets?

Published on 14 Apr 2026 - 7:29

score 48 · Answer 2 · 2026-04-14 03:30:04

48

Views

Calculating no. of solutions within some bounds

Published on 14 Apr 2026 - 3:30

score 137 · Answer 3 · 2026-05-10 15:10:25

137

Views

Show that the following language is context-free/not context free by expressing the language as the union of three other languages.

Published on 10 May 2026 - 15:10

score 36 · Answer 4 · 2026-04-15 20:59:44

36

Views

Number of ways to insert $k\in[n]$ identical elements to two $n$ long lists

Published on 15 Apr 2026 - 20:59

score 60 · Answer 5 · 2026-04-10 04:50:36

60

Views

Probability of labelling people in a lineup

Published on 10 Apr 2026 - 4:50

score 162 · Answer 6 · 2026-04-16 11:26:37

162

Views

${x\choose 2}+{n-x\choose 2} \leq {n-1\choose 2}$

Published on 16 Apr 2026 - 11:26

score 219 · Answer 7 · 2026-05-15 09:08:54

219

Views

Generalized Birthday Problem? Combinatorics

Published on 15 May 2026 - 9:08

score 24 · Answer 8 · 2026-04-14 01:38:22

24

Views

Combinatorics question about putting a number of men and women in a line

Published on 14 Apr 2026 - 1:38

score 34 · Answer 9 · 2026-05-10 15:08:19

34

Views

Error in expression of incomplete zeta function?

Published on 10 May 2026 - 15:08

score 49 · Answer 10 · 2026-05-10 17:16:39

49

Views

Counting 2-partitions of $\{1, 2, \cdots, n\}$ of equal size and sum

Published on 10 May 2026 - 17:16

score 60 · Answer 11 · 2026-05-14 22:09:59

60

Views

How many unique integers to be obtained by $\left\lceil\frac{F}{1:1:N}\right\rceil$?

Published on 14 May 2026 - 22:09

score 72 · Answer 12 · 2026-04-15 05:19:54

72

Views

Find upper bound on number of grandparents

Published on 15 Apr 2026 - 5:19

score 35 · Answer 13 · 2026-05-16 11:23:03

35

Views

Restricted Witt algebra and analog of Fermat's Theorem

Published on 16 May 2026 - 11:23

score 323 · Answer 14 · 2026-05-10 19:38:25

323

Views

Edge colourings of an icosahedron

Published on 10 May 2026 - 19:38

score 191 · Answer 15 · 2026-05-13 01:04:03

191

Views

Probability of winning/losing a lonely card game when you shout an integer progressively each time you draw

Published on 13 May 2026 - 1:04

List Question

Number of ways to pick an equal number of elements from two sets?

Calculating no. of solutions within some bounds

Show that the following language is context-free/not context free by expressing the language as the union of three other languages.

Number of ways to insert $k\in[n]$ identical elements to two $n$ long lists

Probability of labelling people in a lineup

${x\choose 2}+{n-x\choose 2} \leq {n-1\choose 2}$

Generalized Birthday Problem? Combinatorics

Combinatorics question about putting a number of men and women in a line

Error in expression of incomplete zeta function?

Counting 2-partitions of $\{1, 2, \cdots, n\}$ of equal size and sum

How many unique integers to be obtained by $\left\lceil\frac{F}{1:1:N}\right\rceil$?

Find upper bound on number of grandparents

Restricted Witt algebra and analog of Fermat's Theorem

Edge colourings of an icosahedron

Probability of winning/losing a lonely card game when you shout an integer progressively each time you draw

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