Collatz Problem a.k.a. 3n+1 Problem
This post focuses on Collatz problem, which is also known as, among others, the 3n+1 problem, and the Syracuse problem.
Outline. We begin by introducing Collatz conjecture; afterwards, we presents an algorithm to solve the 
problem (UVa 100 or SPOJ 4073) published in both UVa and SPOJ. The primary advantage of having it in SPOJ is that we can use F# to derive a simple and elegant solution; at the same time, we can verify it via SPOJ's online judge... continue reading.