}while(!q.isEmpty()) {ListNodetemp=q.poll(); cur.next = temp;//keep adding the next node in the listif(temp.next !=null){ q.add(temp.next); } cur = cur.next; }returnhead.next; } }
https://leetcode.com/problems/min-stack/ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 #include <vector> #include <queue> #include <map> #include <iostream> usingnamespacestd; classMinStack { public: vector<int> vec; priority_queue...
232. Implement Queue using Stacks class MyQueue { public: /** Initialize your data structure here. */ MyQueue() { } /** Push element x to the back of queue. */ void push(int x) { s1.push(x); } /** Removes the element from in front of queue and returns that element. */ i...
错误:无法将‘minHeap’从‘std::priority_queue,std::greater >’转换为‘std::priority_queue 、、 我是c++的初学者。我正在尝试使用std::priority_queue创建一个maxheap和一个minheap。只创建一个maxheap可以很好地工作,但不能同时创建两个。我似乎不能理解这个错误。我收到以下错误:无法将‘minHeap’从‘st...
package datastructure.heap.leetcode; import java.util.Arrays; import java.util.Collections; import java.util.PriorityQueue; import java.util.Queue; /** * @author roseduan * @time 2020/9/16 8:54 下午 * @description 最小的K个元素
priority_queue<int, vector<int>, greater<int>>minHeap; MinStack() { }voidpush(intx) { data.push(x);if(minHeap.empty() || x <=minHeap.top() ) minHeap.push(x); }voidpop() {if(data.empty())return;intx =data.top(); data.pop();if(x <=minHeap.top()) minHeap.pop(); ...
703. Kth Largest Element in a Stream & c++ priority_queue & minHeap/maxHeap 相关链接 leetcode c++ priority_queue cplusplus c++ priority_queue cnblog 背景知识 堆是算法中常用的数据结构之一,其结构是完全二叉树,但实现的方法最常见的是使用数组;这里主要介绍小顶堆,其根元素最小,对于任何一个节...
classSolution{public:intlastStoneWeight(vector<int> &stones){ priority_queue<int> q;for(intx : stones) q.push(x);intx, y;while(q.size() !=1) { x = q.top(), q.pop(); y = q.top(), q.pop(); q.push(x - y); }returnq.top(); } }; ...
}priority_queue<char,vector<char>, greater<char> > qs[s.size()];for(inti=0; i<s.size(); i++){intindexOfSet = root(u, i); qs[indexOfSet].push(s[i]); }stringres;for(inti=0; i<s.size(); i++){intindexOfSet = root(u, i); ...