fcfec7bc_Dana_Jacobsen__blogs_perl_org__Combinations_and_Permutations_Derange
[Module] Algorithm::Combinatorics [Impl] XS [Comb] yes [Perm] yes [Comb w/rep] yes [Perm w/rep] yes [Speed] + [Order] Lexico [Comments] Fast iterator or array [Derange] 
yes
y e s
n o
Dana Jacobsen [blogs.perl.org]