User: NSRaffy

Re:So what will happen in practice?

On: Google Hacked, May Pull Out of China

haha

better idea?

On: Can rev="canonical" Replace URL-Shortening Services?

urls posted to twitter should automatically be converted to a shortened url supported by twitter themselves:

tweet: "check this out http://foo.com/bar/lots/of/crap.html?a=1&b=2&c=3..."

should appears as: "check this out http://twitter.com/$user/x"
(where x is an unique id)

there would be a limit on the number of urls encoded per hour

after a 24 hours or so, the urls would automatically expand in your tweet history.

additionally, you could list all the shortened urls you are provided and convert them to long urls manually.

A few lines of Mathematica

On: Solving the Knight's Tour Puzzle In 60 Lines of Python

ClearAll[solve, jump];
$Jumps = {{-2, 1}, {-1, 2}, {1, 2}, {2, 1}, {2, -1}, {1, -2}, {-1, -2}, {-2, -1}};
solve[n_] := (ClearAll[board]; Catch[jump[1, 1, 1, n]]; Array[board, {n, n}]);
jump[x_, y_, z_, n_] /; 1 <= x <= n && 1 <= y <= n && ! ValueQ[board[x, y]] := (
   board[x, y] = z;
   If[z == n^2, Throw[1]];
   jump[x + #1, y + #2, z + 1, n] & @@@ $Jumps;
   board[x, y] =.;
   );
Block[{$RecursionLimit = Infinity}, solve[5] // MatrixForm]