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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Priority-queue/Component-Pascal/priority-queue-2.pas Normal file
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DEFINITION PQueues;
IMPORT Boxes;
TYPE
PQueue = POINTER TO RECORD
size-: LONGINT;
(pq: PQueue) IsEmpty (): BOOLEAN, NEW;
(pq: PQueue) Pop (): Rank, NEW;
(pq: PQueue) Push (r: Rank), NEW
END;
Rank = POINTER TO RECORD
p-: LONGINT;
value-: Boxes.Object
END;
PROCEDURE NewPQueue (cap: LONGINT): PQueue;
PROCEDURE NewRank (p: LONGINT; v: Boxes.Object): Rank;
PROCEDURE Test;
END PQueues.