Prime Minister of Singapore Coded Sudoku Solver in C++
The relevant excerpt from the speech:<p><pre><code>    40 years ago, after doing a math degree, I went on to study computer
    science, on my father’s advice.  He said there is a future in that, and he
    was right.  So for the Smart Nation Programme Office, I have put Minister
    Vivian Balakrishnan in charge, reporting to me.  Vivian is both a hacker
    and a dabbler – He used to be an eye surgeon but since he does not get to
    operate on eyes nowadays, he dabbles in building simple robots, assembling
    watches, wireless devices and programming apps.  His day job is to be the
    Minister for the Environment and Water Resources, and so when he builds
    apps, he uses the real time APIs generated by the Ministry.  That’s called
    user-testing.  I used to enjoy this; it is a long time since I’ve done
    anything.  The last programme I wrote was a Sudoku solver in C++ several
    years ago, so I’m out of date.  My children are in IT, two of them – both
    graduated from MIT.  One of them browsed a book and said, “Here, read
    this”.  It said “Haskell – learn you a Haskell for great good”, and one day
    that will be my retirement reading. 
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What's amazing is not just the bit about having written C++ code but the fact
that he used the term hacker propely and knows what Haskell is. Interesting.