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            "title": "Find Nearest Right Node in Binary Tree",
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            "categoryTitle": "Algorithms",
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                {
                    "name": "Tree",
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                {
                    "name": "Breadth-First Search",
                    "slug": "breadth-first-search",
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                {
                    "name": "Binary Tree",
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            "hints": [
                "Use BFS, traverse the tree level by level and always push the left node first",
                "When you reach the target node, mark  a boolean variable true",
                "If you meet another node in the same level after marking the boolean true, return this node.",
                "If you did not meet new nodes in the same level and started traversing a new level, return Null"
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