Question

permutation basic concept confusion

score 91 · Answer 1 · 2026-04-15 00:34:32

91

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permutation basic concept confusion

Published on 15 Apr 2026 - 0:34

score 1.6k · Answer 2 · 2026-04-12 09:30:55

1.6k

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Minimum number of moves (not swaps) to transform one permutation into another

Published on 12 Apr 2026 - 9:30

score 1.6k · Answer 3 · 2026-04-12 03:51:02

1.6k

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Counting: how many ways of climbing a stair?

Published on 12 Apr 2026 - 3:51

score 420 · Answer 4 · 2026-04-15 10:05:35

420

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Can someone explain this proof of the relationship between chromatic number and independence number to me?

Published on 15 Apr 2026 - 10:05

score 65 · Answer 5 · 2026-04-16 03:12:43

How many integers can be formed by using exactly $x$ $4$'s, $y$ $5$'s, and $z$ $6$'s if no other numbers are used?

score 82 · Answer 6 · 2026-04-09 18:47:41

82

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Permutation Product

Published on 09 Apr 2026 - 18:47

score 47 · Answer 7 · 2026-04-13 21:27:24

47

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Find a permutation $\sigma$ maximizing the sum $\sum_{i=1}^n {a_i \over \sigma(i)}$.

Published on 13 Apr 2026 - 21:27

score 156 · Answer 8 · 2026-04-16 01:31:33

156

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Combination Problem : $6$ Countries , $4$ players from each country

Published on 16 Apr 2026 - 1:31

score 295 · Answer 9 · 2026-04-14 06:54:32

295

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Consider the system S which can take n input parameters and each parameter can take on m values

Published on 14 Apr 2026 - 6:54

score 296 · Answer 10 · 2026-04-14 19:51:09

296

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Understand a part of the proof about permutations in a symmetric group on $n$ elements

Published on 14 Apr 2026 - 19:51

score 3k · Answer 11 · 2026-04-14 18:52:19

3k

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Permutation of 2 or more groups while keeping the ordering of the groups

Published on 14 Apr 2026 - 18:52

score 147 · Answer 12 · 2026-04-13 15:34:17

147

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How to find number of integral solutions, containing large number of cases?

Published on 13 Apr 2026 - 15:34

score 626 · Answer 13 · 2026-04-19 10:19:01

626

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Cyclic permutation group example ($n>1$)

Published on 19 Apr 2026 - 10:19

score 1.2k · Answer 14 · 2026-04-13 10:50:40

1.2k

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Concept of alike in Permutation and Combination

Published on 13 Apr 2026 - 10:50

score 51 · Answer 15 · 2026-04-17 04:24:32

51

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Permutations & series

Published on 17 Apr 2026 - 4:24

List Question

permutation basic concept confusion

Minimum number of moves (not swaps) to transform one permutation into another

Counting: how many ways of climbing a stair?

Can someone explain this proof of the relationship between chromatic number and independence number to me?

How many integers can be formed by using exactly $x$ $4$'s, $y$ $5$'s, and $z$ $6$'s if no other numbers are used?

Permutation Product

Find a permutation $\sigma$ maximizing the sum $\sum_{i=1}^n {a_i \over \sigma(i)}$.

Combination Problem : $6$ Countries , $4$ players from each country

Consider the system S which can take n input parameters and each parameter can take on m values

Understand a part of the proof about permutations in a symmetric group on $n$ elements

Permutation of 2 or more groups while keeping the ordering of the groups

How to find number of integral solutions, containing large number of cases?

Cyclic permutation group example ($n>1$)

Concept of alike in Permutation and Combination

Permutations & series

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