/* write a program that reads 10 grades and finds the number of failing 
and number of passing grades and their averages */


#include<stdio.h>
int main(){
	int grade, i=0,sum_pass=0, sum_fail=0, count_pass=0, count_fail=0;
	float ave_pass, ave_fail;
	printf("enter 10 grades\n");
	while(i<10){
		scanf("%d",&grade);
		if(grade>=60){
			sum_pass+=grade;
			count_pass++; //increment by 1 count_pass+=1
		}
		else{
			sum_fail+=grade;
			count_fail++;
		}
		i++;
	}

	if(count_fail>0){
		ave_fail=(float)(sum_fail)/count_fail;
		printf("%d failed, with average %f\n",count_fail,ave_fail);
	}
	else{
		printf("nobody failed\n");
	}

	if(count_pass>0){
                ave_pass=(float)(sum_pass)/count_pass;
                printf("%d passed, with average %f\n",count_pass,ave_pass);
        }
        else{
                printf("nobody passed\n");
        }
	return 0;
}