NOIP2018考前抱佛脚——数据结构基础及STL实现

目录

• 动态数组
• 栈
• 队列
• 优先队列

动态数组

	srand(time(0));
	std::vector<int> qwq;

	for(int i = 1;i <= 10;++i)
		qwq.push_back(rand()%100);

	int n = qwq.size();

	for(int i = 1;i <= n;++i)
		std::cout<< qwq[i-1] << " "; 

	std::cout << "\n";

	sort(qwq.begin(),qwq.end());

	for(int i = 1;i <= n;++i)
		std::cout<< qwq[i-1] << " ";

栈

	srand(time(0));
	std::stack<int> qwq;

	for(int i = 1;i <= 10;++i)
	{
		int x = rand()%100;
		std::cout << x << " ";
		qwq.push(x);
	}

	std::cout << "\n";
	int n = qwq.size();

	for(int i = 1;i <= n;++i)
	{
		std:: cout << qwq.top() <<" ";
		qwq.pop();
	}

队列

	srand(time(0));
	std::queue<int> qwq;

	for(int i = 1;i <= 10;++i)
		qwq.push(rand()%100);

	int n = qwq.size();

	for(int i = 1;i <= n;++i)
	{
		std::cout << qwq.front() << " ";
		qwq.pop();
	}

	if(qwq.empty()) std::cout << "\n队列已经清空！";

优先队列

//1. 大根堆
	srand(time(0));
	std::priority_queue<int> qwq;

	for(int i = 1;i <= 10;++i)
		qwq.push(rand()%100);

	int n = qwq.size();

	for(int i = 1;i <= n;++i)
	{
		std::cout << qwq.top() << " ";
		qwq.pop();
	}

	std::cout << std::endl;
//2. 小根堆
	std::priority_queue<int,std::vector<int>,std::greater<int> > qaq;

	for(int i = 1;i <= 10;++i)
		qaq.push(rand()%100);

	n = qaq.size();

	for(int i = 1;i <= n;++i)
	{
		std::cout << qaq.top() << " ";
		qaq.pop();
	}