Contents

#lang racket

(provide perfect-numbers)

(define (perfect-numbers n)
  (filter perfect? (range 1 (add1 n))))

(define (perfect? n)
  (= (apply + (filter (lambda (x)
            (zero? (modulo n x))) (range 1 n))) n))

Version data entries

396 entries across 396 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.179	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.178	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.177	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.176	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.175	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.174	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.173	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.172	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.171	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.170	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.169	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.167	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.166	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.165	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.164	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.163	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.162	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.161	tracks/racket/exercises/perfect-numbers/example.rkt
trackler-2.2.1.160	tracks/racket/exercises/perfect-numbers/example.rkt