链接:https://leetcode-cn.com/problems/implement-queue-using-stacks/solution/232java-da-bai-100tu-jie-by-ustcyyw/ classMyQueue {private Stack<Integer> in = new Stack<>(); private Stack<Integer> out = new Stack<>();publicvoidpush(intx) { in.push(x); }publicintpop() {in2out();re...
232. Implement Queue using Stacks(https://leetcode.com/problems/implement-queue-using-stacks/description/): 这道题的考虑的东西很少,没考虑一些特殊情况: #include <iostream>#include<stack>usingnamespacestd;classMyQueue {public: stack<int>in; stack<int>out;/** Initialize your data structure here....
1、用栈实现队列 232. Implement Queue using Stacks(Easy) Implement the following operations of a queue using stacks. push(x) – Push element x to the back of queue. pop() – Removes the element from in front of queue. peek() – Get the front element. empty() – Return whether the q...
队列:queue.Queue 实现 全文小结 Queue 队列/ Stack 栈的实现方法: collections.deque(首选) queue.LifoQueue list(更好理解,方便进一步封装) 特别地,封装的原理,在LeetCode 的一些题目中是需要用到的,比如: 225.Implement Stack using Queues 232.Implement Queue using Stacks ===全文结束=== 编辑于...
特别地,之前我们讨论过用队列实现栈:王几行xing:【Python-转码刷题】LeetCode 225E - 用队列实现栈 Implement Stack Using Queues。 在开始这个题目之前,咱们来问个有意思的问题:Python 的 list,相当于哪种数据结构,Stack、Queue or Hash table? 答:最像的是栈,因为append()后进,pop()先出。但是结合pop[0]...
建议和这道题leetcode 232. Implement Queue using Stacks 双栈实现队列 一起学习。 1)取栈顶元素: 返回有元素的队列的首元素 2)判栈空:若队列a和b均为空则栈空 3)入栈:a队列当前有元素,b为空(倒过来也一样)则将需要入栈的元素先放b中,然后将a中的元素依次出列并入列倒b中。(保证有一个队列是空的...
232 Implement Queue using Stacks 37.40% Easy 231 Power of Two 31.30% Easy 230 Kth Smallest Element in a BST 30.50% Medium 229 Majority Element II 30.50% Medium 228 Summary Ranges 21.10% Easy 227 Basic Calculator II 18.00% Medium 226 Invert Binary Tree 35.40% Easy 225 Implement Stack using ...
225 Implement Stack using Queues 用队列实现栈 Java Easy 227 Basic Calculator II 基本计算器 II TODO Medium 232 Implement Queue using Stacks 用栈实现队列 Java Easy 313 Super Ugly Number 超级丑数 TODO Medium 332 Reconstruct Itinerary 重新安排行程 TODO Hard 341 Flatten Nested List Iterator 扁平化嵌套...
20 Valid Parentheses 232 Implement Queue using Stacks 【 C 】【 My C solution 】 225 Implement Stack using Queues 【 C 】703 Kth Largest Element in a Stream 239 Sliding Window Maximum 242 Valid Anagram 1 Two Sum 【 C 】 15 3Sum 18 4Sum 98 V...
232 Implement Queue using Stacks【C】【My C solution】 225 Implement Stack using Queues【C】 Heap 703 Kth Largest Element in a Stream 239 Sliding Window Maximum Hash table 242 Valid Anagram 1 Two Sum【C】 15 3Sum 18 4Sum Tree, Binary tree, Binary search tree 98 Validate Binary Search Tree...