Submission #1155689

---

Source Code Expand

#include <stdio.h>
int main(void){
	int n,c[100],i,j,s;
	double ans=0;
	scanf("%d",&n);
	for(i=0;i<n;i++){
		scanf("%d",&c[i]);
	}
	for(i=0;i<n;i++){
		s=0;
		for(j=0;j<n;j++){
			if(i==j){
				continue;
			}
			if(c[i]%c[j]==0){
				s++;
			}
		}
		ans+=s%2?0.5:(double)((s+2.0)/(2*s+2.0));
	}
	printf("%f\n",ans);
	return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:5:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ^
./Main.c:7:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&c[i]);
   ^

Judge Result