Submission #122451


Source Code Expand

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#include <iostream>
#include <vector>
#include <string>
#include <cstdio>
#include <algorithm>
using namespace std;

int main() {
  int n, k;
  cin >> n >> k;
  int temp;
  vector <int> r;
  for (int i = 0; i < n; i++) {
    cin >> temp;
    r.push_back(temp);
  }

  double ans = 0;
  sort(r.begin(), r.end());
  for (int i = n-k; i < n; i++) {
    ans = (ans + r[i]) / 2.0;
  }

  printf("%f\n", ans);
}

Submission Info

Submission Time
Task C - AtCoderプログラミング講座
User warm4C0
Language C++ (G++ 4.6.4)
Score 100
Code Size 431 Byte
Status
Exec Time 24 ms
Memory 928 KB

Test Cases

Set Name Score / Max Score Test Cases
All 100 / 100 00_sample_01.txt, 00_sample_02.txt, 00_sample_03.txt, 00_sample_04.txt, test_01.txt, test_02.txt, test_03.txt, test_04.txt, test_05.txt, test_06.txt, test_07.txt, test_08.txt, test_09.txt, test_10.txt, test_11.txt, test_12.txt, test_13.txt, test_14.txt, test_15.txt, test_16.txt, test_17.txt, test_18.txt, test_19.txt, test_20.txt, test_21.txt, test_22.txt, test_23.txt, test_24.txt, test_25.txt, test_26.txt, test_27.txt, test_28.txt, test_29.txt, test_30.txt
Case Name Status Exec Time Memory
00_sample_01.txt 21 ms 752 KB
00_sample_02.txt 20 ms 928 KB
00_sample_03.txt 20 ms 924 KB
00_sample_04.txt 21 ms 800 KB
test_01.txt 19 ms 800 KB
test_02.txt 22 ms 804 KB
test_03.txt 20 ms 804 KB
test_04.txt 24 ms 796 KB
test_05.txt 21 ms 680 KB
test_06.txt 22 ms 804 KB
test_07.txt 23 ms 848 KB
test_08.txt 21 ms 800 KB
test_09.txt 22 ms 804 KB
test_10.txt 21 ms 800 KB
test_11.txt 21 ms 800 KB
test_12.txt 22 ms 928 KB
test_13.txt 20 ms 808 KB
test_14.txt 20 ms 804 KB
test_15.txt 20 ms 924 KB
test_16.txt 22 ms 680 KB
test_17.txt 22 ms 920 KB
test_18.txt 22 ms 804 KB
test_19.txt 21 ms 920 KB
test_20.txt 22 ms 804 KB
test_21.txt 22 ms 804 KB
test_22.txt 21 ms 928 KB
test_23.txt 22 ms 920 KB
test_24.txt 22 ms 796 KB
test_25.txt 22 ms 804 KB
test_26.txt 22 ms 928 KB
test_27.txt 21 ms 796 KB
test_28.txt 21 ms 792 KB
test_29.txt 22 ms 808 KB
test_30.txt 21 ms 924 KB