https://locusxt.github.io/2018/03/04/C++%E6%A8%A1%E6%9D%BF%E4%BD%BF%E7%94%A8.html

Map//定义 map <int, int> iimap; //迭代器 map <int, int>::iterator it; //判断key是否存在it = iimap.find(key); if (it != iimap.end()){ //存在}Vector//定义vector &...