题解 | #最后k个元素#

#include<bits/stdc++.h>
#include <vector>
using namespace std;
int main() {
    int n, k;
    vector<int>a;
    // write your code here......
    cin >> n;
    cin >> k;
    int num;
    while (cin >> num) {
        a.push_back(num);
    }

    vector<int>::iterator iter = a.end();

    for (int i = 0; i < k; i++) {
        iter--;
        cout << *iter << " ";

    }

    cout << endl;

    return 0;
}