A Binary Heap is either Min Heap or Max Heap. In a Min Binary Heap, the key at root must be minimum among all keys present in Binary Heap. The same property must be recursively true for all nodes in Binary Tree. Max Binary Heap is similar to MinHeap, except the root must be maximum among all keys present.
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The following piece of code uses the library for min heap
// Create an instance of the Heap
let mut min = Heap::new("min", 6).expect("Something did not work");
// Add value into the binary tree in no particular order
min.add(20);
min.add(10);
min.add(5);
min.add(100);
min.add(2);
min.add(40);
// Print out the results
println!("{}", min);The result output is
Number of nodes: 6
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Node: 2 Left: 5 Right: 10
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Node: 5 Left: 100 Right: 20
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Node: 10 Left: 40The following piece of code uses the library for max heap
// Create an instance of the Heap
let mut test = Heap::new("max", 6).expect("Something did not work");
// Add value into the binary tree in no particular order
test.add(20);
test.add(10);
test.add(5);
test.add(100);
test.add(2);
test.add(40);
// Print out the results
println!("{}", test);The result output is
Number of nodes: 6
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Node: 100 Left: 20 Right: 40
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Node: 20 Left: 10 Right: 2
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Node: 40 Left: 5