Yes it's a sample problem but the natural conciseness of the Haskell compared to that C++ is almost comical. You can count non-whitespace lines or lexical cons

Yes it's a sample problem but the natural conciseness of the Haskell compared to that C++ is almost comical. You can count non-whitespace lines or lexical constructs and get a 3x reduction. But conceptually, the ability to have that much code so concise is way more than a 3x productivity gain.