c++ list<>

C++中的list<>是一个双向链表容器，可以在任何位置高效地插入和删除元素。以下是两个list<>的例子：

1.遍历list<>并输出元素

#include <iostream>
#include <list>
using namespace std;

int main() {
    list<int> list1 = {12, 23, 34};
    list<int>::const_iterator it1 = list1.begin();
    for (; it1 != list1.end(); it1++) {
        cout << *it1 << "\t";
    }
    cout << endl;

    list<int>::reverse_iterator it2 = list1.rbegin();
    for (; it2 != list1.rend(); it2++) {
        cout << *it2 << "\t";
    }
    cout << endl;

    return 0;
}

2.访问list<>的首尾元素

#include <iostream>
#include <list>
using namespace std;

int main() {
    list<int> list1 = {12, 23, 34};
    cout << "list1.front(): " << list1.front() << endl;
    cout << "list1.back(): " << list1.back() << endl;

    return 0;
}