Submission #1150515

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Source Code Expand

#include <stdio.h>

int main(void) {
	int n,s;
	int c[100];
	double ans;
	
	scanf("%d",&n);
	for (int i = 0;i < n;i++) {
		scanf("%d",&c[i]);
	}
	
	ans = 0.0;
	for (int i = 0;i < n;i++) {
		s = 0;
		for (int j = 0;j < n;j++) {
			if (i == j) {
				continue;
			}
			if (!(c[i] % c[j])) {
				s++;
			}
		}
		if (s % 2) {
			ans += 0.5;
		} else {
			ans += (0.5+1.0/(2.0*s+2.0));
		}
	}
	printf("%lf\n",ans);
	
	return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:8:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ^
./Main.c:10:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&c[i]);
   ^

Judge Result