快排为啥MLE?!?!(求助大佬)
查看原帖
快排为啥MLE?!?!(求助大佬)
514463
Allen_Z楼主2024/1/21 17:05
#include<bits/stdc++.h>
using namespace std;

const int N = 1e5 + 9;
int n,a[N];

void qs(int st,int ed){
	if(st == ed){
		return;
	}
	int l = st - 1,r = ed + 1,mid = (l + r) / 2;
	while(l < r){
		do l++; while(a[l] < a[mid]);
		do r--; while(a[r] > a[mid]);
		if(l < r){
			swap(a[l],a[r]);
		}
	}
	qs(st,r);
	qs(l + 1,ed);
}

int main(){
	cin >> n;
	for(int i = 0;i < n;i++){
		cin >> a[i];
	}
	qs(0,n - 1);
	for(int i = 0;i < n;i++){
		cout << a[i] << " ";
	}
	return 0;
}
2024/1/21 17:05
加载中...