form-fitting? ( n -- ? )

Vocabulary

project-euler.206.private

Inputs

n

an object

Outputs

?

an object

Definition

USING: grouping project-euler.common sequences ;

IN: project-euler.206.private

: form-fitting? ( n -- ? )
    number>digits 2 group [ first ] map
    { 1 2 3 4 5 6 7 8 9 0 } sequence= ;