Plus Minus Hackerrank Solution in C

#include<stdio.h>

int main()

{

int a[1000],n,i,z=0,p=0,ng=0;

scanf("%d",&n);

for(i=0;i<n;i++)

{

scanf("%d",&a[i]);

}

for(i=0;i<n;i++)

{

if(a[i]==0)

{

z++;

}

else if(a[i]>0)

{

p++;

}

else

{

ng++;

}

}

printf("%f\n",(double)p/(double)n);

printf("%f\n",(double)ng/(double)n);

printf("%f\n",(double)z/(double)n);

return 0;

}