Initial data commit

Task/Van-der-Corput-sequence/Swift/van-der-corput-sequence.swift

@@ -0,0 +1,36 @@
+func vanDerCorput(n: Int, base: Int, num: inout Int, denom: inout Int) {
+  var n = n, p = 0, q = 1
+
+  while n != 0 {
+    p = p * base + (n % base)
+    q *= base
+    n /= base
+  }
+
+  num = p
+  denom = q
+
+  while p != 0 {
+    n = p
+    p = q % p
+    q = n
+  }
+
+  num /= q
+  denom /= q
+}
+
+var num = 0
+var denom = 0
+
+for base in 2...5 {
+  print("base \(base): 0 ", terminator: "")
+
+  for n in 1..<10 {
+    vanDerCorput(n: n, base: base, num: &num, denom: &denom)
+
+    print("\(num)/\(denom) ", terminator: "")
+  }
+
+  print()
+}