[no content]binary-search-tree-iterator-ii.json

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            "title": "Binary Search Tree Iterator II",
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            "exampleTestcases": "[\"BSTIterator\",\"next\",\"next\",\"prev\",\"next\",\"hasNext\",\"next\",\"next\",\"next\",\"hasNext\",\"hasPrev\",\"prev\",\"prev\"]\n[[[7,3,15,null,null,9,20]],[null],[null],[null],[null],[null],[null],[null],[null],[null],[null],[null],[null]]",
            "categoryTitle": "Algorithms",
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            "topicTags": [
                {
                    "name": "Stack",
                    "slug": "stack",
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                    "__typename": "TopicTagNode"
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                {
                    "name": "Tree",
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                {
                    "name": "Design",
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                    "__typename": "TopicTagNode"
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                {
                    "name": "Binary Search Tree",
                    "slug": "binary-search-tree",
                    "translatedName": null,
                    "__typename": "TopicTagNode"
                },
                {
                    "name": "Binary Tree",
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                    "__typename": "TopicTagNode"
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                    "name": "Iterator",
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            "hints": [
                "The inorder traversal of a BST gives us the elements in a sorted order.",
                "We can use a stack to simulate the inorder traversal of the BST.",
                "We can use another stack as a buffer to store numbers returned from calls to next and use this buffer whenever prev is called."
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