解法:递归,与常规path sum不同,这题的path sum可以不起始于root,也可以不终止于leaf。 Java: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 publicclassSolution { intmaxValue; publicintmaxPathSum(TreeNode root) { maxValue = Integer.MIN_VALUE; maxPathDown(root); returnmaxValue; } privat...
Github 同步地址: https://github.com/grandyang/leetcode/issues/124 类似题目: Path Sum Sum Root to Leaf Numbers Path Sum IV Longest Univalue Path 参考资料: https://leetcode.com/problems/binary-tree-maximum-path-sum/ https://leetcode.com/problems/binary-tree-maximum-path-sum/discuss/39775/Acc...
Given a n-ary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. For example, given a 3-ary tree... Leetcode之算法专题《Binary Tree Maximum Path Sum》 ...
leetcode -- 104. Maximum Depth of Binary Tree 题目描述 题目难度:Easy Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. Note: A leaf is a node wi... ...
https://leetcode.com/problems/maximum-depth-of-binary-tree/ 题目描述 Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. ...
第二步, 考虑 root -> any node 的maximum sum, 实际上就是基于root -> leaf的情况下,加入了如果children 的maximum sum 是负数的情况,那么就不要加入children的maximum sum。 classSolution:defmaxSum(self, root):ifnotroot:return0 left=self.maxSum(root.left) ...
原题链接在这里:https://leetcode.com/problems/binary-tree-maximum-path-sum/ 题目: Given a non-empty binary tree, find the maximum path sum. For this problem, a path is defined as any sequence of nodes from some starting node to any node in the tree along the parent-child connections. ...
0124-binary-tree-maximum-path-sum.cpp 0125-valid-palindrome.cpp 0127-word-ladder.cpp 0128-longest-consecutive-sequence.cpp 0129-sum-root-to-leaf-numbers.cpp 0130-surrounded-regions.cpp 0131-palindrome-partitioning.cpp 0133-clone-graph.cpp 0134-gas-station.cpp 0136-single-number.cpp 0138-copy-list...
PathSumII.py PopulatingNextRightPointersInEachNode.py PopulatingNextRightPointersInEachNodeII.py SerializeAndDeserializeBinaryTree.py SumRootToLeafNumbers.py SymmetricTree.py Trie.py ValidateBinarySearchTree.py serializeAndDeserialize.py README.mdBreadcrumbs leetCode-4 /Tree/...
0124-binary-tree-maximum-path-sum.cpp 0125-valid-palindrome.cpp 0127-word-ladder.cpp 0128-longest-consecutive-sequence.cpp 0129-sum-root-to-leaf-numbers.cpp 0130-surrounded-regions.cpp 0131-palindrome-partitioning.cpp 0133-clone-graph.cpp 0134-gas-station.cpp 0136-single-number.cpp 0138-copy-list...