yohei #5341(2008/01/16 02:20 GMT) [ Prolog ] Rating0/0=0.00
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leap(N) :- N < 0, N1 is N + 400, !, leap(N1). leap(N) :- N >= 400, N1 is N - 400, !, leap(N1). leap(N) :- N /\ 0b11 =:= 0b00, N \= 100, N \= 200, N \= 300.
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yohei
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