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题目链接 "https://leetcode.com/problems/flatten binary tree to linked list/" 题目原文 Given a binary tree, flatten it to a linked list in place. For example, 阅读全文
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题目链接 "https://leetcode.com/problems/path sum ii/" 题目原文 Given a binary tree and a sum, find all root to leaf paths where each path's sum equals the giv 阅读全文
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题目链接 "https://leetcode.com/problems/path sum/" 题目原文 Given a binary tree and a sum, determine if the tree has a root to leaf path such that adding up a 阅读全文
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题目链接 "https://leetcode.com/problems/minimum depth of binary tree/" 题目原文 Given a binary tree, find its minimum depth. The minimum depth is the number o 阅读全文
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题目链接 "https://leetcode.com/problems/balanced binary tree/" 题目原文 Given a binary tree, determine if it is height balanced. For this problem, a height ba 阅读全文
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题目链接 "https://leetcode.com/problems/convert sorted list to binary search tree/" 题目原文 Given a singly linked list where elements are sorted in ascending 阅读全文
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题目链接 "https://leetcode.com/problems/convert sorted array to binary search tree/" 题目原文 Given an array where elements are sorted in ascending order, con 阅读全文
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题目链接 "https://leetcode.com/problems/binary tree level order traversal ii/" 题目原文 Given a binary tree, return the bottom up level order traversal of its 阅读全文
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题目链接 "https://leetcode.com/problems/construct binary tree from inorder and postorder traversal/" 题目原文 Given inorder and postorder traversal of a tree, 阅读全文
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题目链接 "https://leetcode.com/problems/construct binary tree from preorder and inorder traversal/" 题目原文 Given preorder and inorder traversal of a tree, c 阅读全文