Question

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

score 104 · Answer 1 · 2026-04-11 02:44:25

104

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

Published on 11 Apr 2026 - 2:44

score 99 · Answer 2 · 2026-04-16 22:41:37

99

Views

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

Published on 16 Apr 2026 - 22:41

score 120 · Answer 3 · 2026-04-15 21:19:34

120

Views

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

Published on 15 Apr 2026 - 21:19

score 220 · Answer 4 · 2026-05-10 20:14:23

220

Views

Parity of Ramanujan's Tau Function

Published on 10 May 2026 - 20:14

score 3k · Answer 5 · 2026-04-14 16:01:39

3k

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Do all odd functions have symmetric zeros?

Published on 14 Apr 2026 - 16:01

score 595 · Answer 6 · 2026-05-10 14:02:59

595

Views

Parity of Permutations

Published on 10 May 2026 - 14:02

score 152 · Answer 7 · 2026-04-14 10:39:16

152

Views

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

Published on 14 Apr 2026 - 10:39

score 196 · Answer 8 · 2026-03-26 06:28:20

196

Views

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

Published on 26 Mar 2026 - 6:28

score 56 · Answer 9 · 2026-03-26 04:53:20

56

Views

Decrement of a Permutation vs Number of Transpositions

Published on 26 Mar 2026 - 4:53

score 52 · Answer 10 · 2026-03-26 04:53:10

52

Views

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

Published on 26 Mar 2026 - 4:53

score 138 · Answer 11 · 2026-03-26 04:50:19

138

Views

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

Published on 26 Mar 2026 - 4:50

score 55 · Answer 12 · 2026-03-26 06:30:16

55

Views

Ratio of odd to even $2n-$tuples

Published on 26 Mar 2026 - 6:30

score 87 · Answer 13 · 2026-03-26 06:30:17

87

Views

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

Published on 26 Mar 2026 - 6:30

score 77 · Answer 14 · 2026-03-26 06:30:55

77

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 26 Mar 2026 - 6:30

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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