#include <bits/stdc++.h>
using namespace std;
const int N = 100000100;
int a[N], n;
void fun(int q[], int l, int r)
{
    if (l >= r)
        return;
    int f = q[l], i = l - 1, j = r + 1;
    while (i < j)
    {
        do
            i++;
        while (q[i] < f);
        do
            j--;
        while (q[j] > f);
        if (i < j)
            swap(q[i], q[j]);
    }
    fun(q, l, j);
    fun(q, j + 1, r);
}
int main()
{
    cin >> n;
    for (int i = 1; i <= n; i++)
        cin >> a[i];
    fun(a, 1, n);
    for (int i = 1; i <= n; i++)
        cout << a[i] << ' ';
}

虽说开了o2就能过 但是为什么会有两个超时呢