Add reference to the source

fellowswift · Feb 10, 2016 · 86388f1 · 86388f1
1 parent cdacb62
commit 86388f1
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/Challenges/0001-The_3n+1_problem/The3n+1.playground/Contents.swift b/Challenges/0001-The_3n+1_problem/The3n+1.playground/Contents.swift
@@ -28,3 +28,7 @@ func challenge_0001(i: Int, _ j: Int) -> Int {
 //assert(challenge_0001(100, 200) == 125)
 //assert(challenge_0001(201, 210) == 89)
 //assert(challenge_0001(900, 1000) == 174)
+
+/*:
+This problem appeared originally in programming-challenges.com
+*/