[LeetCode]895. Maximum Frequency Stack 解题报告(Python) 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/maximum-frequency-stack/description/ 题目描述: Implement FreqStack, a class which simulates the operation of a…

Implement FreqStack, a class which simulates the operation of a stack-like data structure. FreqStack has two functions: push(int x), which pushes an integer xonto the stack. pop(), which removes and returns the most frequent element in the stack. If…

题目链接:https://leetcode.com/problems/maximum-frequency-stack/ 题意:实现一种数据结构FreqStack,FreqStack需要实现两个功能: push(int x) : 将x放入栈中 pop(): 移除并返回栈中出现次数最多的元素,若果该元素不唯一,返回离栈顶最近的 思路:维护一个set,set中存储元素值,以及一个包含该元素在原栈中的出现次序的栈,排序先按照set中栈的大小排序,栈大小相同则按照栈顶元素大小排序.push若该元素不在se…

作者: 负雪明烛 id: fuxuemingzhu 个人博客:http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 递归 日期 题目地址:https://leetcode.com/problems/maximum-binary-tree/description/ 题目描述 Given an integer array with no duplicates. A maximum tree building on this array is defined as fol…

作者: 负雪明烛 id: fuxuemingzhu 个人博客:http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 双栈 日期 题目地址:https://leetcode-cn.com/problems/max-stack/ 题目描述 Design a max stack that supports push, pop, top, peekMax and popMax. push(x) – Push element x onto stack. pop() – Rem…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/unique-paths/description/ 题目描述: A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below). The robot can only move either…

[LeetCode]456. 132 Pattern 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/132-pattern/description/ 题目描述: Given a sequence of n integers a1, a2, -, an, a 132 pattern is a subs…

[LeetCode]853. Car Fleet 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/car-fleet/description/ 题目描述: N cars are going to the same destination along a one lane road. The desti…

[LeetCode]71. Simplify Path 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.me/ 题目地址:https://leetcode.com/problems/simplify-path/description/ 题目描述: Given an absolute path for a file (Unix-style), simplify it. For e…

[LeetCode]376. Wiggle Subsequence 解题报告(Python) 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址: https://leetcode.com/problems/wiggle-subsequence/description/ 题目描述: A sequence of numbers is called a wiggle sequence if the differences betw…