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BOOL InsertPQ(hPQ, tag, key)
HPQ hPQ;
int tag;
int key;
 
The InsertPQ function inserts the key and its associated tag into the
priority queue.
 
Parameter  Description
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hPQ        Identifies a priority queue.
 
tag        Specifies a tag associated with the key.
 
key        Specifies a key.
 
Return Value
 
The return value is TRUE if the insertion is successful. Otherwise, it is
-1.
 
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