Submission #1608714


Source Code Expand

#include <stdio.h>
#include <stdlib.h>

int compar(const void *px, const void *py)
{
	int x = *(int*)px, y = *(int*)py;
	return (x - y);
}

int main(void)
{
	int n, k, i;
	int r[100];
	double rate = 0;
	
	scanf("%d %d", &n, &k);
	for(i=0;i<n;++i){
		scanf("%d", &r[i]);
	}
	qsort(r,n,sizeof(int),compar);
	for(i=n-k;i<n;++i){
		if(rate > r[i]){
			break;
		}
		rate = (rate + r[i])/2.0;
	}
	printf("%f\n", rate);
	return 0;
}

Submission Info

Submission Time
Task C - AtCoderプログラミング講座
User iseekautos
Language C (GCC 5.4.1)
Score 100
Code Size 455 Byte
Status AC
Exec Time 1 ms
Memory 128 KB

Compile Error

./Main.c: In function ‘main’:
./Main.c:16:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &k);
  ^
./Main.c:18:3: warning: ignoring return value of ‘scanf’, 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 0 ms 128 KB
00_sample_02.txt AC 0 ms 128 KB
00_sample_03.txt AC 0 ms 128 KB
00_sample_04.txt AC 0 ms 128 KB
test_01.txt AC 0 ms 128 KB
test_02.txt AC 0 ms 128 KB
test_03.txt AC 0 ms 128 KB
test_04.txt AC 1 ms 128 KB
test_05.txt AC 1 ms 128 KB
test_06.txt AC 1 ms 128 KB
test_07.txt AC 0 ms 128 KB
test_08.txt AC 0 ms 128 KB
test_09.txt AC 1 ms 128 KB
test_10.txt AC 0 ms 128 KB
test_11.txt AC 0 ms 128 KB
test_12.txt AC 1 ms 128 KB
test_13.txt AC 1 ms 128 KB
test_14.txt AC 0 ms 128 KB
test_15.txt AC 0 ms 128 KB
test_16.txt AC 0 ms 128 KB
test_17.txt AC 0 ms 128 KB
test_18.txt AC 0 ms 128 KB
test_19.txt AC 0 ms 128 KB
test_20.txt AC 0 ms 128 KB
test_21.txt AC 0 ms 128 KB
test_22.txt AC 0 ms 128 KB
test_23.txt AC 1 ms 128 KB
test_24.txt AC 1 ms 128 KB
test_25.txt AC 1 ms 128 KB
test_26.txt AC 1 ms 128 KB
test_27.txt AC 1 ms 128 KB
test_28.txt AC 1 ms 128 KB
test_29.txt AC 1 ms 128 KB
test_30.txt AC 0 ms 128 KB