题解 | #迭代器遍历容器#

#include <iostream>
// write your code here......
#include <vector>

using namespace std;

int main() {

    // write your code here......
    vector<int> numbers; // 创建一个存储整数的vector容器
    int num;
    while (cin >> num)
        numbers.push_back(num);
    
    // 使用正向迭代器遍历并输出vector中的元素
    for (auto it = numbers.begin(); it != numbers.end(); ++it) {
        cout << *it << " ";
    }

    cout << endl;

    for (auto rit = numbers.rbegin(); rit != numbers.rend(); ++rit) {
        cout << *rit << " ";
    }

    return 0;
}