Question

Is a storage-space-efficient RAID with 3 arbitrary disks failing without data loss possible?

score 101 · Answer 1 · 2017-02-24 21:13:18

101

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Is a storage-space-efficient RAID with 3 arbitrary disks failing without data loss possible?

Published on 24 Feb 2017 - 21:13

score 97 · Answer 2 · 2017-03-03 17:59:02

97

Views

Prove: $\text{$n$ is even} \iff n^n\equiv 1\mod{(n+1)}$

Published on 03 Mar 2017 - 17:59

score 117 · Answer 3 · 2017-03-13 19:04:44

117

Views

k-Odd, k-Even Sequence [without modulo or ceiling/floor function]

Published on 13 Mar 2017 - 19:04

score 219 · Answer 4 · 2026-03-25 06:10:33

219

Views

Parity of Ramanujan's Tau Function

Published on 25 Mar 2026 - 6:10

score 3k · Answer 5 · 2017-04-04 13:07:07

3k

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Do all odd functions have symmetric zeros?

Published on 04 Apr 2017 - 13:07

score 591 · Answer 6 · 2017-04-04 20:40:09

591

Views

Parity of Permutations

Published on 04 Apr 2017 - 20:40

score 149 · Answer 7 · 2023-01-31 07:47:41

149

Views

Possibility of arranging $1$ and $-1$ in a grid such that the sum of the products is $0$

Published on 31 Jan 2023 - 7:47

score 195 · Answer 8 · 2023-02-11 14:45:05

195

Views

Switch off all the n bulbs, (n-1) at a time. A parity-based puzzle?

Published on 11 Feb 2023 - 14:45

score 55 · Answer 9 · 2023-03-15 15:34:54

55

Views

Decrement of a Permutation vs Number of Transpositions

Published on 15 Mar 2023 - 15:34

score 51 · Answer 10 · 2023-03-16 12:55:17

51

Views

Parity of number of subsets having odd intersection with fixed number of sets

Published on 16 Mar 2023 - 12:55

score 137 · Answer 11 · 2023-03-16 19:00:21

137

Views

Proving If a is an odd integer then $a^2+3a+5$ is odd.

Published on 16 Mar 2023 - 19:00

score 54 · Answer 12 · 2023-03-29 16:53:29

54

Views

Ratio of odd to even $2n-$tuples

Published on 29 Mar 2023 - 16:53

score 86 · Answer 13 · 2023-04-16 03:36:47

86

Views

Proving that a couple must sit together on the same motorcycle - a problem with mutually exclusive propositions

Published on 16 Apr 2023 - 3:36

score 76 · Answer 14 · 2023-04-18 11:50:33

76

Views

Let α1 , …, αr be distinct even permutations, and β an odd permutation. Show then α1β, …, αr β are r distinct odd permutations.

Published on 18 Apr 2023 - 11:50

score 17 · Answer 15 · 2026-03-14 11:29:21

17

Views

Variations of coloring problems with parity constaints

Published on 14 Mar 2026 - 11:29

List Question

Is a storage-space-efficient RAID with 3 arbitrary disks failing without data loss possible?

Prove: $\text{$n$ is even} \iff n^n\equiv 1\mod{(n+1)}$

k-Odd, k-Even Sequence [without modulo or ceiling/floor function]

Parity of Ramanujan's Tau Function

Do all odd functions have symmetric zeros?

Parity of Permutations

Possibility of arranging $1$ and $-1$ in a grid such that the sum of the products is $0$

Switch off all the n bulbs, (n-1) at a time. A parity-based puzzle?

Decrement of a Permutation vs Number of Transpositions

Parity of number of subsets having odd intersection with fixed number of sets

Proving If a is an odd integer then $a^2+3a+5$ is odd.

Ratio of odd to even $2n-$tuples

Proving that a couple must sit together on the same motorcycle - a problem with mutually exclusive propositions

Let α1 , …, αr be distinct even permutations, and β an odd permutation. Show then α1β, …, αr β are r distinct odd permutations.

Variations of coloring problems with parity constaints

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