Sha256: be7b2dbecaaadf783b7070aef3810899158448367b526233ecafa4c085740d70
Contents?: true
Size: 1.08 KB
Versions: 188
Compression:
Stored size: 1.08 KB
Contents
#if os(Linux)
import Glibc
#elseif os(OSX)
import Darwin
#endif
struct Triplet {
var a: Int, b: Int, c: Int = 0
init(_ a: Int, _ b: Int, _ c: Int) {
self.a = a
self.b = b
self.c = c
}
var sum: Int { return a + b + c }
var product: Int { return a * b * c }
var isPythagorean: Bool { return pow(Double(a), 2) + pow(Double(b), 2) == pow(Double(c), 2) }
static func fromWhere(_ minFactor: Int = 1, maxFactor: Int, sum: Int = 0) -> [Triplet] {
func shouldIncludeTriplet(_ sum: Int, triplet: Triplet) -> Bool {
return triplet.isPythagorean && (sum == 0 || triplet.sum == sum)
}
var triplets = [Triplet]()
for i in minFactor ..< maxFactor - 1 {
for j in i + 1 ..< maxFactor {
for k in j + 1 ... maxFactor {
let triplet = Triplet(i, j, k)
if shouldIncludeTriplet(sum, triplet: triplet) {
triplets.append(triplet)
}
}
}
}
return triplets
}
}
Version data entries
188 entries across 188 versions & 1 rubygems