annotate lab1/gcd.p @ 0:bfdcc3820b32

Basis
author Mike Spivey <mike@cs.ox.ac.uk>
date Thu, 05 Oct 2017 08:04:15 +0100
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mike@0 1 (* lab1/gcd.p *)
mike@0 2
mike@0 3 begin
mike@0 4 x := 3 * 37; y := 5 * 37;
mike@0 5 while x <> y do
mike@0 6 if x > y then
mike@0 7 x := x - y
mike@0 8 else
mike@0 9 y := y - x
mike@0 10 end
mike@0 11 end;
mike@0 12 print x; newline
mike@0 13 end.
mike@0 14
mike@0 15 (*<<
mike@0 16 37
mike@0 17 >>*)