491-递增子序列(Increasing Subsequences) 原文链接: https://leetcode-cn.com/problems/increasing-subsequences 英文原文Given an integer array nums, return all the differe 2021-12-03 位运算哈希表回溯数组 中等
492-构造矩形(Construct the Rectangle) 原文链接: https://leetcode-cn.com/problems/construct-the-rectangle 英文原文A web developer needs to know how to design a web p 2021-12-03 数学 简单
493-翻转对(Reverse Pairs) 原文链接: https://leetcode-cn.com/problems/reverse-pairs 英文原文Given an integer array nums, return the number of reverse pai 2021-12-03 二分查找分治归并排序数组有序集合树状数组线段树 困难
494-目标和(Target Sum) 原文链接: https://leetcode-cn.com/problems/target-sum 英文原文You are given an integer array nums and an integer target. You 2021-12-03 动态规划回溯数组 中等
495-提莫攻击(Teemo Attacking) 原文链接: https://leetcode-cn.com/problems/teemo-attacking 英文原文Our hero Teemo is attacking an enemy Ashe with poison attac 2021-12-03 数组模拟 简单
496-下一个更大元素 I(Next Greater Element I) 原文链接: https://leetcode-cn.com/problems/next-greater-element-i 英文原文The next greater element of some element x in an arr 2021-12-03 单调栈哈希表数组栈 简单
498-对角线遍历(Diagonal Traverse) 原文链接: https://leetcode-cn.com/problems/diagonal-traverse 英文原文Given an m x n matrix mat, return an array of all the ele 2021-12-03 数组模拟矩阵 中等
500-键盘行(Keyboard Row) 原文链接: https://leetcode-cn.com/problems/keyboard-row 英文原文Given an array of strings words, return the words that can be 2021-12-03 哈希表字符串数组 简单
501-二叉搜索树中的众数(Find Mode in Binary Search Tree) 原文链接: https://leetcode-cn.com/problems/find-mode-in-binary-search-tree 英文原文Given the root of a binary search tree (BST 2021-12-03 二叉搜索树二叉树树深度优先搜索 简单
502-IPO 原文链接: https://leetcode-cn.com/problems/ipo 英文原文Suppose LeetCode will start its IPO soon. In order to sell a good price 2021-12-03 堆(优先队列)排序数组贪心 困难