Question

How many bit strings?

score 4.2k · Answer 1 · 2026-04-02 02:16:52

4.2k

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How many bit strings?

Published on 02 Apr 2026 - 2:16

score 119 · Answer 2 · 2026-03-26 06:18:16

119

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Solving Triple Summation Cases

Published on 26 Mar 2026 - 6:18

score 77 · Answer 3 · 2026-03-25 12:54:30

77

Views

Combinatorics - how many potential matches between n men and m women where n>m?

Published on 25 Mar 2026 - 12:54

score 53 · Answer 4 · 2026-03-25 14:21:50

53

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A Basic Permutations Problem the order matters or doesn't confusion

Published on 25 Mar 2026 - 14:21

score 523 · Answer 5 · 2018-02-15 00:22:22

523

Views

The Postman Problem

Published on 15 Feb 2018 - 0:22

score 92 · Answer 6 · 2026-03-25 07:45:29

92

Views

Closed form of $\sum_{k=0}^p \binom{k+m-1}{m-1}?$

Published on 25 Mar 2026 - 7:45

score 477 · Answer 7 · 2026-04-02 06:26:35

477

Views

Please explain how in the TSP, "every subpath of a path of minimum distance is itself a minimum distance"?

Published on 02 Apr 2026 - 6:26

score 2.9k · Answer 8 · 2018-02-15 10:01:35

2.9k

Views

Number of ways of choosing seven children from a classroom of 32 (15 boys, 17 girls) with at least 1 boy

Published on 15 Feb 2018 - 10:01

score 51 · Answer 9 · 2026-03-25 04:42:42

How many permutation are there of n distinct elements if two specific elements will not appear either in the 1st place or in the last place?

score 144 · Answer 10 · 2018-02-15 15:07:23

144

Views

How many ways are there to choose $4$ balls from $3$ black, $2$ green, and $1$ red ball?

Published on 15 Feb 2018 - 15:07

score 53 · Answer 11 · 2026-03-25 12:51:56

53

Views

Probability of a number being selected between Min and Max times

Published on 25 Mar 2026 - 12:51

score 53 · Answer 12 · 2026-03-25 07:49:00

53

Views

Digit counts in the multiples of $n$

Published on 25 Mar 2026 - 7:49

score 31 · Answer 13 · 2026-03-26 12:53:36

31

Views

Finding the heaviest theoretical subpath of size ($n/2$), given a required cycle of size $n$ in a directed,weighted graph.

Published on 26 Mar 2026 - 12:53

score 52 · Answer 14 · 2026-03-26 11:18:35

52

Views

Maximum number of edges on $2^{k-1}+s$ vertices of a $k$-dimensional cube?

Published on 26 Mar 2026 - 11:18

score 2.3k · Answer 15 · 2026-04-02 00:24:12

2.3k

Views

How many sub-square matrices does a square matrix have and is there a simple formula for it?

Published on 02 Apr 2026 - 0:24

List Question

How many bit strings?

Solving Triple Summation Cases

Combinatorics - how many potential matches between n men and m women where n>m?

A Basic Permutations Problem the order matters or doesn't confusion

The Postman Problem

Closed form of $\sum_{k=0}^p \binom{k+m-1}{m-1}?$

Please explain how in the TSP, "every subpath of a path of minimum distance is itself a minimum distance"?

Number of ways of choosing seven children from a classroom of 32 (15 boys, 17 girls) with at least 1 boy

How many permutation are there of n distinct elements if two specific elements will not appear either in the 1st place or in the last place?

How many ways are there to choose $4$ balls from $3$ black, $2$ green, and $1$ red ball?

Probability of a number being selected between Min and Max times

Digit counts in the multiples of $n$

Finding the heaviest theoretical subpath of size ($n/2$), given a required cycle of size $n$ in a directed,weighted graph.

Maximum number of edges on $2^{k-1}+s$ vertices of a $k$-dimensional cube?

How many sub-square matrices does a square matrix have and is there a simple formula for it?

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