// Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST. // Calling next() will return the next smallest number in the BST. // Note: ...
Each time we keep pushing the left children into the stack until we reach a null node. Then the top node will always have the mininun value. It's kind of like the in-order traveral, except that we ...
Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST. Calling next will return the next smallest number in the BST. next and hasNext ...
Abstract: The tree (hierarchical) structure is one of the elementary memory arrangements, used by numerous data structures – ranging from simple to relatively sophisticated ones. The most well-known ...
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