Sha256: 7a3c39a3e2899946c4fd89d2c43f4bd46bb8fa8c3cec7c901d074c6eb5c006d7

Contents?: true

Size: 857 Bytes

Versions: 114

Compression:

Stored size: 857 Bytes

Contents

package perfect

import "errors"

// Classification is the category devised by Greek Mathematician Nicomachus
type Classification string

// Defined categories
const (
	ClassificationDeficient Classification = "deficient"
	ClassificationPerfect   Classification = "perfect"
	ClassificationAbundant  Classification = "abundant"
)

// Errors
var (
	ErrOnlyPositive = errors.New("Positive number is required")
)

// Classify finds the category of given natural number
func Classify(n int64) (Classification, error) {
	if n <= 0 {
		return "", ErrOnlyPositive
	}
	var sum int64
	for i := int64(1); i < n; i++ {
		if n%i == 0 {
			if sum = sum + i; sum > n {
				return ClassificationAbundant, nil
			}
		}
	}
	if sum == n {
		return ClassificationPerfect, nil
	} else if sum < n {
		return ClassificationDeficient, nil
	}
	return ClassificationAbundant, nil
}

Version data entries

114 entries across 114 versions & 1 rubygems

Version Path
trackler-2.2.1.139 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.138 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.137 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.136 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.135 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.134 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.133 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.132 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.131 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.130 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.129 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.128 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.127 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.126 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.125 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.124 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.123 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.122 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.121 tracks/go/exercises/perfect-numbers/example.go
trackler-2.2.1.120 tracks/go/exercises/perfect-numbers/example.go