07 2019 档案
摘要：原题链接在这里：https://leetcode.com/problems/redundant-connection-ii/ 题目： In this problem, a rooted tree is a directed graph such that, there is exactly one
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摘要：原题链接在这里：https://leetcode.com/problems/redundant-connection/ 题目： In this problem, a tree is an undirected graph that is connected and has no cycles. Th
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摘要：原题链接在这里：https://leetcode.com/problems/satisfiability-of-equality-equations/ 题目： Given an array equations of strings that represent relationships betwe
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摘要：原题链接在这里：https://leetcode.com/problems/regions-cut-by-slashes/ 题目： In a N x N grid composed of 1 x 1 squares, each 1 x 1 square consists of a /, \, or
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摘要：原题链接在这里：https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/ 题目： On a 2D plane, we place stones at some integer coordinate point
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摘要：原题链接在这里：https://leetcode.com/problems/accounts-merge/ 题目： Given a list accounts, each element accounts[i] is a list of strings, where the first elemen
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摘要：原题链接在这里：https://leetcode.com/problems/network-delay-time/ 题目： There are N network nodes, labelled 1 to N. Given times, a list of travel times as direc
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摘要：原题链接在这里：https://leetcode.com/problems/smallest-subtree-with-all-the-deepest-nodes/ 题目： Given a binary tree rooted at root, the depth of each node is t
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摘要：原题链接在这里：https://leetcode.com/problems/complete-binary-tree-inserter/ 题目： A complete binary tree is a binary tree in which every level, except possibly
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摘要：原题链接在这里：https://leetcode.com/problems/split-bst/ 题目： Given a Binary Search Tree (BST) with root node root, and a target value V, split the tree into t
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摘要：原题链接在这里：https://leetcode.com/problems/check-completeness-of-a-binary-tree/ 题目： Given a binary tree, determine if it is a complete binary tree. Definit
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摘要：原题链接在这里：https://leetcode.com/problems/maximum-difference-between-node-and-ancestor/ 题目： Given the root of a binary tree, find the maximum value V for
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摘要：原题链接在这里：https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree/ 题目： We are given a binary tree (with root node root), a target node, and an
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摘要：原题链接在这里：https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal/ 题目： Return the root node of a binary search tree that matc
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摘要：原题链接在这里：https://leetcode.com/problems/flip-binary-tree-to-match-preorder-traversal/ 题目： Given a binary tree with N nodes, each node has a different va
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