ways ( length colortile -- permutations )

Vocabulary

project-euler.116.private

Inputs

length	an object
colortile	an object

Outputs

permutations

an object

Definition

USING: kernel math sequences ;

IN: project-euler.116.private

: ways ( length colortile -- permutations )
    V{ 1 } clone [ [ next ] 2curry times ] keep last 1 - ;