快速排序思维导图:
快速排序算法模版:
#include <iostream>
using namespace std;
const int N = 1e5 + 10;
int n;
int q[N];
void quick_sort(int q[], int l, int r)
{
if (l >= r) return;
int x = q[(l + r) / 2], i = l - 1, j = r + 1;
while (i < j)
{
do i++; while (q[i] < x);
do j--; while (q[j] > x);
if (i < j) swap(q[i], q[j]);
}
quick_sort(q, l, j);
quick_sort(q, j + 1, r);
}
int main()
{
scanf("%d", &n);
for (int i = 0; i < n; i++) scanf("%d", &q[i]);
quick_sort(q, 0, n - 1);
for (int i = 0; i < n; i++) printf("%d ", q[i]);
return 0;
}