Submission #1759003

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Source Code Expand

#include<cstdio>

using namespace std;

int main(){
	int n, c[100], d[100] = {};
	scanf("%d", &n);
	for(int i = 0; i < n; i++) scanf("%d", &c[i]);
	for(int i = 0; i < n; i++) for(int j = 0; j < n; j++)
		if(i != j && c[i] % c[j] == 0) d[i]++;
	double r = 0;
	for(int i = 0; i < n; i++){
		if(d[i] % 2 == 0) r += (double)(d[i] + 2) / (2 * d[i] + 2);
		else r += 0.5;
	}
	printf("%f\n", r);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:7:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
./Main.cpp:8:47: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  for(int i = 0; i < n; i++) scanf("%d", &c[i]);
                                               ^

Judge Result