Submission #1693303


Source Code Expand

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

#define REP(i,n) for(int (i)=0;(i)<(n);(i)++)
#define REP2(i,s,n) for(int (i)=(s);(i)<(n);(i)++)

int main(){
	int n,k;
	int i,j;
	double rate=0.;
	
	scanf("%d %d",&n,&k);
	int r[n];
	REP(i,n){
		scanf("%d",&r[i]);
	}
	
	int max,max_j,temp;
	REP(i,n){
		max_j = i;		
		REP2(j,i+1,n){		
			if(r[j] > r[max_j]){
				max_j = j;
			}
		}
		temp = r[i];
		r[i] = r[max_j];
		r[max_j] = temp;
	}
	
	REP(i,k){
		rate = (rate + r[k-(i+1)]) / 2.;
	}
	
	printf("%.6f\n",rate);
	
	return 0;
}

Submission Info

Submission Time
Task C - AtCoderプログラミング講座
User nabe12
Language C++14 (GCC 5.4.1)
Score 100
Code Size 564 Byte
Status AC
Exec Time 1 ms
Memory 256 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:12:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&n,&k);
                      ^
./Main.cpp:15:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&r[i]);
                    ^

Judge Result

Set Name All
Score / Max Score 100 / 100
Status
AC × 34
Set Name Test Cases
All 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 AC 1 ms 256 KB
00_sample_02.txt AC 1 ms 256 KB
00_sample_03.txt AC 1 ms 256 KB
00_sample_04.txt AC 1 ms 256 KB
test_01.txt AC 1 ms 256 KB
test_02.txt AC 1 ms 256 KB
test_03.txt AC 1 ms 256 KB
test_04.txt AC 1 ms 256 KB
test_05.txt AC 1 ms 256 KB
test_06.txt AC 1 ms 256 KB
test_07.txt AC 1 ms 256 KB
test_08.txt AC 1 ms 256 KB
test_09.txt AC 1 ms 256 KB
test_10.txt AC 1 ms 256 KB
test_11.txt AC 1 ms 256 KB
test_12.txt AC 1 ms 256 KB
test_13.txt AC 1 ms 256 KB
test_14.txt AC 1 ms 256 KB
test_15.txt AC 1 ms 256 KB
test_16.txt AC 1 ms 256 KB
test_17.txt AC 1 ms 256 KB
test_18.txt AC 1 ms 256 KB
test_19.txt AC 1 ms 256 KB
test_20.txt AC 1 ms 256 KB
test_21.txt AC 1 ms 256 KB
test_22.txt AC 1 ms 256 KB
test_23.txt AC 1 ms 256 KB
test_24.txt AC 1 ms 256 KB
test_25.txt AC 1 ms 256 KB
test_26.txt AC 1 ms 256 KB
test_27.txt AC 1 ms 256 KB
test_28.txt AC 1 ms 256 KB
test_29.txt AC 1 ms 256 KB
test_30.txt AC 1 ms 256 KB