题解 | 最后k个元素

#include<bits/stdc++.h>
#include <vector>
using namespace std;
int main(){
	int n,k,x;
	vector<int>a;
	// write your code here......
	cin>>n>>k;
	for(int i=0; i<n; i++) {
		cin>>x;
		a.push_back(x);
		}
	vector<int>::iterator it;
	for(it=a.end()-1; it>=a.end()-k;it--){
		cout<<*it<<" ";
	}
	return 0;
}