Binary heap: Difference between revisions

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=== Decrease or increase key ===
<!-- section linked from [[Reheapification]] -->
 
The decrease key operation replaces the value of a node with a given value with a lower value, and the increase key operation does the same but with a higher value. This involves finding the node with the given value, changing the value, and then down-heapifying or up-heapifying to restore the heap property.