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Informally, an algorithm is a set of explicit instructions used to solve a problem (e.g. Euclid's algorithm for computing the greatest common divisor of two integers). For more specific questions on algorithms, this tag may be used in conjunction with the approximation-algorithms, algorithmic-randomness and algorithmic-topology tags.

10 votes
2 answers
683 views

Computing a transversal of a subgroup $H$ of $G$ in expected $O(|G : H|^2 \log |G : H| + |H|...

I'll admit I have not studied the algorithms mentioned thoroughly, as there is a fair amount of prerequisite material regarding strongly generating sets and bases. …
1 vote
2 answers
287 views

Practical permutation search problems resilient to backtrack techniques

$ algorithms; to which one-way functions over a space of permutations gives a problem with no $o(n!)$ solution (discussed in the comments). …
12 votes
2 answers
289 views

Permutation search problems with no known $o(n!)$ algorithms

I am looking for problems for whose solution no known subfactorial algorithms are known. …