2.06 Tree

Tree #

No.TitleSolutionDifficultyTimeComplexitySpaceComplexityFavoriteAcceptance
0094Binary Tree Inorder TraversalGoEasyO(n)O(1)70.9%
0095Unique Binary Search Trees IIGoMedium49.6%
0096Unique Binary Search TreesGoMediumO(n^2)O(n)58.4%
0098Validate Binary Search TreeGoMediumO(n)O(1)30.6%
0099Recover Binary Search TreeGoMediumO(n)O(1)48.8%
0100Same TreeGoEasyO(n)O(1)55.6%
0101Symmetric TreeGoEasyO(n)O(1)51.7%
0102Binary Tree Level Order TraversalGoMediumO(n)O(1)61.0%
0103Binary Tree Zigzag Level Order TraversalGoMediumO(n)O(n)53.7%
0104Maximum Depth of Binary TreeGoEasyO(n)O(1)71.9%
0105Construct Binary Tree from Preorder and Inorder TraversalGoMedium57.8%
0106Construct Binary Tree from Inorder and Postorder TraversalGoMedium55.5%
0107Binary Tree Level Order Traversal IIGoMediumO(n)O(1)58.8%
0108Convert Sorted Array to Binary Search TreeGoEasyO(n)O(1)66.2%
0109Convert Sorted List to Binary Search TreeGoMedium55.7%
0110Balanced Binary TreeGoEasyO(n)O(1)46.9%
0111Minimum Depth of Binary TreeGoEasyO(n)O(1)42.6%
0112Path SumGoEasyO(n)O(1)45.6%
0113Path Sum IIGoMediumO(n)O(1)54.1%
0114Flatten Binary Tree to Linked ListGoMediumO(n)O(1)58.0%
0116Populating Next Right Pointers in Each NodeGoMedium57.3%
0124Binary Tree Maximum Path SumGoHardO(n)O(1)37.7%
0129Sum Root to Leaf NumbersGoMediumO(n)O(1)57.1%
0144Binary Tree Preorder TraversalGoEasyO(n)O(1)62.7%
0145Binary Tree Postorder TraversalGoEasyO(n)O(1)64.3%
0173Binary Search Tree IteratorGoMediumO(n)O(1)67.4%
0199Binary Tree Right Side ViewGoMediumO(n)O(1)59.7%
0222Count Complete Tree NodesGoMediumO(n)O(1)55.4%
0226Invert Binary TreeGoEasyO(n)O(1)71.7%
0230Kth Smallest Element in a BSTGoMediumO(n)O(1)67.8%
0235Lowest Common Ancestor of a Binary Search TreeGoEasyO(n)O(1)57.2%
0236Lowest Common Ancestor of a Binary TreeGoMediumO(n)O(1)55.5%
0257Binary Tree PathsGoEasyO(n)O(1)58.8%
0297Serialize and Deserialize Binary TreeGoHard53.9%
0331Verify Preorder Serialization of a Binary TreeGoMedium43.7%
0337House Robber IIIGoMedium53.5%
0341Flatten Nested List IteratorGoMedium60.7%
0404Sum of Left LeavesGoEasyO(n)O(1)55.2%
0429N-ary Tree Level Order TraversalGoMedium68.9%
0437Path Sum IIIGoMediumO(n)O(1)50.1%
0508Most Frequent Subtree SumGoMedium62.9%
0513Find Bottom Left Tree ValueGoMedium65.3%
0515Find Largest Value in Each Tree RowGoMediumO(n)O(n)64.5%
0530Minimum Absolute Difference in BSTGoEasy56.3%
0538Convert BST to Greater TreeGoMedium66.3%
0543Diameter of Binary TreeGoEasy54.4%
0559Maximum Depth of N-ary TreeGoEasy71.1%
0563Binary Tree TiltGoEasy58.6%
0572Subtree of Another TreeGoEasy45.4%
0589N-ary Tree Preorder TraversalGoEasy76.2%
0617Merge Two Binary TreesGoEasy78.0%
0623Add One Row to TreeGoMedium54.0%
0637Average of Levels in Binary TreeGoEasyO(n)O(n)68.8%
0653Two Sum IV - Input is a BSTGoEasy58.8%
0662Maximum Width of Binary TreeGoMedium40.3%
0669Trim a Binary Search TreeGoMedium66.3%
0700Search in a Binary Search TreeGoEasy76.5%
0701Insert into a Binary Search TreeGoMedium74.9%
0703Kth Largest Element in a StreamGoEasy54.8%
0783Minimum Distance Between BST NodesGoEasy56.2%
0834Sum of Distances in TreeGoHard53.1%
0863All Nodes Distance K in Binary TreeGoMedium61.2%
0872Leaf-Similar TreesGoEasy65.0%
0897Increasing Order Search TreeGoEasy78.3%
0938Range Sum of BSTGoEasy85.1%
0958Check Completeness of a Binary TreeGoMedium53.7%
0968Binary Tree CamerasGoHard42.0%
0971Flip Binary Tree To Match Preorder TraversalGoMedium49.9%
0979Distribute Coins in Binary TreeGoMedium71.6%
0987Vertical Order Traversal of a Binary TreeGoHard41.6%
0993Cousins in Binary TreeGoEasyO(n)O(1)53.8%
1026Maximum Difference Between Node and AncestorGoMedium73.2%
1028Recover a Tree From Preorder TraversalGoHard72.5%
1038Binary Search Tree to Greater Sum TreeGoMedium84.8%
1104Path In Zigzag Labelled Binary TreeGoMedium74.6%
1110Delete Nodes And Return ForestGoMedium69.3%
1123Lowest Common Ancestor of Deepest LeavesGoMedium70.2%
1145Binary Tree Coloring GameGoMedium51.3%
1302Deepest Leaves SumGoMedium87.1%
1305All Elements in Two Binary Search TreesGoMedium79.6%
1600Throne InheritanceGoMedium63.1%
1609Even Odd TreeGoMedium53.1%
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