heap in java
In Java PriorityQueue can be used as a Heap.
Min Heap
PriorityQueue<Integer> minHeap = new PriorityQueue<>();
Max Heap:
PriorityQueue<Integer> maxHeap = new PriorityQueue<>(Comparator.reverseOrder());heap in java
In Java PriorityQueue can be used as a Heap.
Min Heap
PriorityQueue<Integer> minHeap = new PriorityQueue<>();
Max Heap:
PriorityQueue<Integer> maxHeap = new PriorityQueue<>(Comparator.reverseOrder());min max heap java
// min heap: PriorityQueue implementation from the JDK
PriorityQueue<Integer> prq = new PriorityQueue<>();
// max heap: PriorityQueue implementation WITH CUSTOM COMPARATOR PASSED
// Method 1: Using Collections (recommended)
PriorityQueue<Integer> prq = new PriorityQueue<>(Collections.reverseOrder());
// Method 2: Using Lambda function (may cause Integer Overflow)
PriorityQueue<Integer> prq = new PriorityQueue<>((a, b) -> b - a);Copyright © 2021 Codeinu
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