题解 | #输入整型数组和排序标识，对其元素进行排序#

// 自定义一个降序排序规则
#include <algorithm>
#include <iostream>
#include <vector>
using namespace std;

bool myCompare(int a, int b){
    return a > b;
}

int main() {
    int n;
    cin >> n;
    vector<int> v(n,0);
    for(int i = 0; i < n; ++i){
        cin >> v[i];
    }
    int isDecrease;
    cin >> isDecrease;
    
    if(isDecrease){
        sort(v.begin(), v.end(), myCompare);
    }else{
        sort(v.begin(), v.end());
    }

    for(auto it : v){
        cout << it << " ";
    }
    cout << endl;
    return 0;
}
// 64 位输出请用 printf("%lld")