986-区间列表的交集(Interval List Intersections) 原文链接: https://leetcode-cn.com/problems/interval-list-intersections 英文原文You are given two lists of closed intervals, fi 2021-12-03 双指针数组 中等
987-二叉树的垂序遍历(Vertical Order Traversal of a Binary Tree) 原文链接: https://leetcode-cn.com/problems/vertical-order-traversal-of-a-binary-tree 英文原文Given the root of a binary tree, 2021-12-03 二叉树哈希表广度优先搜索树深度优先搜索 困难
988-从叶结点开始的最小字符串(Smallest String Starting From Leaf) 原文链接: https://leetcode-cn.com/problems/smallest-string-starting-from-leaf 英文原文You are given the root of a binary tree 2021-12-03 二叉树字符串树深度优先搜索 中等
990-等式方程的可满足性(Satisfiability of Equality Equations) 原文链接: https://leetcode-cn.com/problems/satisfiability-of-equality-equations 英文原文You are given an array of strings equa 2021-12-03 图字符串并查集数组 中等
989-数组形式的整数加法(Add to Array-Form of Integer) 原文链接: https://leetcode-cn.com/problems/add-to-array-form-of-integer 英文原文The array-form of an integer num is an array r 2021-12-03 数学数组 简单
991-坏了的计算器(Broken Calculator) 原文链接: https://leetcode-cn.com/problems/broken-calculator 英文原文There is a broken calculator that has the integer startVa 2021-12-03 数学贪心 中等
992-K 个不同整数的子数组(Subarrays with K Different Integers) 原文链接: https://leetcode-cn.com/problems/subarrays-with-k-different-integers 英文原文Given an integer array nums and an inte 2021-12-03 哈希表数组滑动窗口计数 困难
993-二叉树的堂兄弟节点(Cousins in Binary Tree) 原文链接: https://leetcode-cn.com/problems/cousins-in-binary-tree 英文原文Given the root of a binary tree with unique values a 2021-12-03 二叉树广度优先搜索树深度优先搜索 简单
995-K 连续位的最小翻转次数(Minimum Number of K Consecutive Bit Flips) 原文链接: https://leetcode-cn.com/problems/minimum-number-of-k-consecutive-bit-flips 英文原文You are given a binary array nums 2021-12-03 位运算前缀和数组滑动窗口 困难
996-正方形数组的数目(Number of Squareful Arrays) 原文链接: https://leetcode-cn.com/problems/number-of-squareful-arrays 英文原文An array is squareful if the sum of every pair o 2021-12-03 位运算动态规划回溯数学数组状态压缩 困难