知识点:

复合类型:

一维数组:

sort(arr,arr+n,greater<int>())

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

int main() {
    int n;
    cin >> n;
    int arr[n + 1];

    for (int i = 0; i < n; i++) {
        cin >> arr[i];
    }

    sort(arr, arr + n, greater<int>());

    for (int i = 0; i < 5; i++) {
        cout << arr[i] << " ";
    }


    return 0;
}