push_back():将元素添加到容器末尾。 pop_back():移除末尾元素。 push_front():插入元素到容器起始位置。 pop_front():移除首元素。 at():所需元素值的引用。 1.4 set(集合)集合基于红黑树实现,有自动排序的功能,并且不能存放重复的元素。 begin()--返回指向第一个元素的迭代器。 clear()--清除...
push_back() 在尾部插入元素 pop_back() 将尾部元素弹出 #include"iostream"#include"vector"usingnamespacestd; typedef vector<int>Vector;intmain() { Vector vec; vec.push_back(1);//push元素到末尾vec.push_back(2); vec.push_back(3); vec.insert(vec.begin()+1,-1);//1 -1 2 3for(inti ...
[i]].push_back(i);}unordered_set<int> visited;// 这里,如果使用set会超时queue<int> q;q.push(headID);visited.insert(headID);intans =0;while(!q.empty()){intboss = q.front();q.pop();for(autonext:m_es[boss]){if(visited.count(next)!=0){continue;}q.push(next);visited.insert...
//常用库名 #include <iostream> #include #include <vector> #include <set> #include<utility> #include <unordered_map> #include <string> #include <stack> #include <queue> #include <algorithm> #include <math.h> #include <sstream> using namespace std; //***map***// ///map内部是自动...
问如何使用以unordered_set作为基础容器的队列？EN队列适配器需要有序的容器(如deque或list )才能工作。
std::queue::back std::queue::emplace std::queue::empty std::queue::front std::queue::pop std::queue::push std::queue::queue std::queue::size std::queue::swap std::set std::set::begin std::set::cbegin std::set::cend
map/unordered_set 1、哈希桶的改装 2、unordered_map的上层封装 3、unordered_set的上层封装 零、前言...
using queue_type = std::deque<value_type>; set_type set; queue_type queue; public: bool push(const value_type& value) { std::pair<set_type::iterator, bool> inserted = set.insert(value); if(! inserted.second) // equal value already contained return false; try { queue.push_back(val...
Android FrameLayout foreground setAlpha not working I found this most excellent solution to the exact issue I am trying to solve here: Blur or dim background when Android PopupWindow active However, I cannot get the parent view to dim by setting the Al... ...
Define Unordered pair. Unordered pair synonyms, Unordered pair pronunciation, Unordered pair translation, English dictionary definition of Unordered pair. n. A pair of numbers that come in a specific order and are usually written in parentheses, such as