Combinations and permutations (Evergreen)
86394
EVERGREEN string question. Combinations and permutations
29678
Circular Permutation
73323
Permutations when some objects are alike
17268
Cycles in permutations of a given size
35886
Generating all Possible Combinations
135408
Solving permutation problem sequentially.
98744
How to distinguish between permutation and combination questions?
158708
Counting the adjacent swaps required to convert one permutation into another
9411
Number of permutations of $n$ elements where no number $i$ is in position $i$
39724
Combinatorial Identities
122389
How can I generate a list of all possible permutations of several letters?
19101
Permutation induced by a partition
107110
Solving Rubik's cube and other permutation puzzles
93748
Alternative to Subsets to generate k-combinations
38809
In how many ways can the letters of word $PERMUTATIONS$ be arranged if there are always 4 letters between P and S?
126025
Computing the inverse of a permutation
148703
Permutations with repeating digits