waaaaaaaaa!

#include<bits/stdc++.h>
using namespace std;

struct Person {
	int t;
	int id;
};
 
bool wait(Person x,Person y){
	return x.t < y.t;
}

Person a[1005];
int n;
int cnt;
double ans;
int main(){
	scanf("%d",&n);
	for(int i=1;i<=n;i++){
		scanf("%d",&a[i].t);    
		a[i].id=i;
	}
	sort(a+1,a+n+1,wait);
	for(int i=1;i<=n;i++){
		cnt=ans;
		ans+=cnt;
		ans+=a[i-1].t; 
		printf("ans=%d;",cnt);
		printf("%d ",a[i].id);
	}
	ans/=n;
	printf("\n%.2f",ans);
	return 0;
} ```