Submission #642772

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Source Code Expand

#include <iostream>
#include <algorithm>
#include <stdio.h>
using namespace std;

int main()
{
	int N, K;

	cin>> N >> K;

	double *Man = new double[N];

	for(int i = 0; i < N; i++){
		cin>> Man[i];
	}

	sort(Man, Man + N);  //昇順に並び替え

	double reto = 0;
	for(int i = N - K; i < N; i++){
		reto = (reto + Man[i]) / 2;
	}

	printf("%.7f\n", reto);
}

Submission Info

Judge Result