Sha256: e2e4fb1e999760a8e49d18232ad166695034d103e759dbb803315f983a67aa32
Contents?: true
Size: 529 Bytes
Versions: 118
Compression:
Stored size: 529 Bytes
Contents
enum CollatzConjectureError: Error {
case numberNotPositive
}
struct CollatzConjecture {
static func steps(_ number: Int) throws -> Int? {
guard number > 0 else {
throw CollatzConjectureError.numberNotPositive
}
var number = number
var steps = 0
while number > 1 {
steps += 1
if number % 2 == 0 {
number /= 2
} else {
number = number * 3 + 1
}
}
return steps
}
}
Version data entries
118 entries across 118 versions & 1 rubygems