/* write a program that first reads the number of elements in the array (assume the max is 100)
then randomly generates the array of integers between -50 and 50
prints an array and finds:
1. the number of zeros
2. number of positives and their average
3. number of negatives and their average
*/

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

#define SIZE 100

int main(){
	int i,array[SIZE], num_elements, count_zero=0, count_pos=0, count_neg=0, sum_p=0, sum_n=0;
	printf("enter number of items\n");
	scanf("%d",&num_elements);
	srand(time(NULL));
	if(num_elements>0 && num_elements<=100){
		printf("elements are\n");
		for(i=0;i<num_elements;i++){

			array[i]=-50+rand()%(50-(-50)+1);
			printf("%d ", array[i]);
			if(array[i]==0)
				count_zero++;
			else if(array[i]>0){
				count_pos++;
			 	sum_p+=array[i];
			}
			else{
                        	count_neg++;
                        	sum_n+=array[i];
                	}
		}
		printf("\n");
		if(count_pos>0)
			printf("pos count and average %d and %f\n",count_pos,(double)(sum_p)/count_pos);
		else
			printf("no positives\n");
		if(count_neg>0)
                        printf("neg count and average %d and %f\n",count_neg,(double)(sum_n)/count_neg);
                else
                        printf("no negatives\n");
		printf("count zero %d\n",count_zero);
	}
	else
		printf("invalid input\n");
	return 0;
}