测试代码插件

#include<cmath>
#include<ctime>
#include<queue>
#include<stack>
#include<cstdio>
#include<vector>
#include<cstring>
#include<cstdlib>
#include<iostream>
#include<algorithm>
#define N 2333
using namespace std;
typedef long long ll;
int n;
inline int read(){
	int ret=0;char c=getchar();
	while(!isdigit(c))
		c=getchar();
	while(isdigit(c)){
		ret=(ret<<1)+(ret<<3)+c-'0';
		c=getchar();
	}
	return ret;
}
inline void Aireen(){
	printf("Hello World!
");
}
int main(){
	freopen("Aireen.in","r",stdin);
	freopen("Aireen.out","w",stdout);
	Aireen();
	fclose(stdin);
	fclose(stdout);
	return 0;
}