Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. top() -- Get the top element. getMin() -- Retrieve the minimum e…

#-*- coding: UTF-8 -*- class MinStack(object):    def __init__(self):        """        initialize your data structure here.        """        self.Stack=[]        self.minStack=[]            def push(self, x):        "&…

155. Min Stack class MinStack { public: /** initialize your data structure here. */ MinStack() { } void push(int x) { if(s1.empty() && s2.empty()){ s1.push(x); s2.push(x); } else{ if(x < s2.top()){ s1.push(x); s2.push(x); } else{ s1.push(x); s2…

Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. top() -- Get the top element. getMin() -- Retrieve the minimum e…

题目描述: Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. top() -- Get the top element. getMin() -- Retrieve the min…

题目: Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. top() -- Get the top element. getMin() -- Retrieve the minim…

翻译 设计支持push.pop.top和在常量时间内检索最小元素的栈. push(x) -- 推送元素X进栈 pop() -- 移除栈顶元素 top() -- 得到栈顶元素 getMin() -- 检索栈的最小元素 原文 Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop…

Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. top() -- Get the top element. getMin() -- Retrieve the minimum e…

作者: 负雪明烛 id: fuxuemingzhu 个人博客:http://fuxuemingzhu.cn/ 目录 题目描述 解题方法 栈同时保存当前值和最小值 辅助栈 同步栈 不同步栈 日期 题目地址:https://leetcode.com/problems/min-stack/description/ 题目描述 Design a stack that supports push, pop, top, and retrieving the minimum element in constan…

Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack.    pop() -- Removes the element on top of the stack.    top() -- Get the top element.    getMin() -- Retrieve the…

Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. top() -- Get the top element. getMin() -- Retrieve the minimum e…

一天一道LeetCode 本系列文章已全部上传至我的github,地址:ZeeCoder's Github 欢迎大家关注我的新浪微博,我的新浪微博 欢迎转载,转载请注明出处 (一)题目 Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) – Push element x onto stack. pop() – Removes the el…

写一个栈,支持push pop top getMin 难就难在在要在常量时间内返回最小的元素. 一开始乱想了很多东西,想到了HashMap,treeMap,堆什么的,都被自己一一否决了. 后来想到其实用一个栈来记录当前的最小值就好了,只有当被删除的元素等于min栈的栈顶元素时,才删除min栈里面的元素. min栈中每个元素代表着那一段栈中的最小值了. // stack: store the stack numbers private Stack<Integer> stack = new Sta…

https://leetcode.com/problems/min-stack/ #include <vector> #include <queue> #include <map> #include <iostream> using namespace std; class MinStack { public: vector<int> vec; priority_queue<int,vector<int>,greater<…

题意:设计一个能输出栈内最小值的栈 该题设计两个栈,一个栈是正常的栈s,而另一个是存最小值的栈sm 在push时要判断sm是否为空,如果为空或者非空但是栈顶元素大于等于插入值的 需要在sm中插入x 同样地在pop时,s的元素被删除了,那么sm中的也应该被删除. 通过这些操作维护sm能很巧妙在O(1)复杂度得到最小值. class MinStack { public: stack<int> sm; stack<int> s; void push(int x) { s.push(x);…

https://leetcode.com/problems/min-stack/#/solutions Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. top() -- Get…

问题描述 Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. top() -- Get the top element. getMin() -- Retrieve the mini…

Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack.    pop() -- Removes the element on top of the stack.    top() -- Get the top element.    getMin() -- Retrieve the…

设计一个支持 push,pop,top 操作,并能在常量时间内检索最小元素的栈.    push(x) -- 将元素x推入栈中.    pop() -- 删除栈顶的元素.    top() -- 获取栈顶元素.    getMin() -- 检索栈中的最小元素.示例:MinStack minStack = new MinStack();minStack.push(-2);minStack.push(0);minStack.push(-3);minStack.getMin();   --> 返回…

1. Two Sum Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have exactly one solution. Example: Given nums = [2, 7, 11, 15], target = 9, Because nums[0] + n…

一.232. Implement Queue using Stacks private Stack<Integer> stack; /** Initialize your data structure here. */ public e232() { stack = new Stack<>(); } /** Push element x to the back of queue. */ public void push(int x) { stack.push(x); } /** R…

LeetCode 155:最小栈 Min Stack 设计一个支持 push,pop,top 操作,并能在常数时间内检索到最小元素的栈. push(x) -- 将元素 x 推入栈中. pop() -- 删除栈顶的元素. top() -- 获取栈顶元素. getMin() -- 检索栈中的最小元素. Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. pu…

1- 问题描述 Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. top() -- Get the top element. getMin() -- Retrieve the m…

这是悦乐书的第177次更新,第179篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第36题(顺位题号是155).设计一个支持push,pop,top和在恒定时间内检索最小元素的堆栈. push(x) - 将元素x推入堆栈. pop() - 删除堆栈顶部的元素. top() - 获取顶部元素. getMin() - 检索堆栈中的最小元素. 例如: MinStack minStack = new MinStack(); minStack.push(-2); minSta…

原标题:https://oj.leetcode.com/problems/min-stack/ Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. top() -- Get the…

Min Stack My Submissions Question Solution Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. top() -- Get the top…

题目 Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. top() -- Get the top element. getMin() -- Retrieve the minimu…

Design a max stack that supports push, pop, top, peekMax and popMax. push(x) -- Push element x onto stack. pop() -- Remove the element on top of the stack and return it. top() -- Get the element on the top. peekMax() -- Retrieve the maximum element i…

本博客是个人原创的针对leetcode上的problem的解法,所有solution都基本通过了leetcode的官方Judging,个别未通过的例外情况会在相应部分作特别说明. 欢迎互相交流! email: tomqianmaple@gmail.com Two Sum Reverse Integer Palindrome Number Roman to Integer Longest Common Prefix Valid Parentheses Merge Two Sorted Lists…

3.2 How would you design a stack which, in addition to push and pop, also has a function min which returns the minimum element? Push, pop and min should all operate in O(1) time. LeetCode上的原题,请参见我之前的博客Min Stack 最小栈.…