Submission #1143832

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Source Code Expand

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

int compare(const void *a,const void *b) {
	return *(int*)b-*(int*)a;
}

int main(void) {
	int n,k;
	int r[100];
	double c;
	
	scanf("%d %d",&n,&k);
	for (int i = 0;i < n;i++) {
		scanf("%d",&r[i]);
	}
	
	qsort(r,n,sizeof(int),compare);
	c = 0.0;
	for (int i = 0;i < k;i++) {
		c = (c+r[k-1-i])/2.0;
	}
	
	printf("%lf\n",c);
	
	return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:13:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&n,&k);
  ^
./Main.c:15:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&r[i]);
   ^

Judge Result