trung binh cong_ Phung Tuan

#include <stdio.h>

int main() {
    int numbers[1000];
    int i, size, countNegative, countEven, count;
    float sum, avg;

    i = 0;
    while(1) {
        printf("Nhap so thu %d: ", i + 1);
        scanf("%d", &numbers[i]);
        if (numbers[i] == 0) {
            break;
        }
        i++;
    }
    size = i - 1;
    printf("\n");

    printf("Day so da nhap: ");
    for(i = 0; i < size; i++) {
        printf("%d ", numbers[i]);
    }
    printf("\n");

    sum = 0;
    count = 0;
    for(i = 0; i < size; i++) {
        if (numbers[i] % 5 == 0) {
            count++;
            sum += numbers[i];
        }
    }
    avg = sum / count;
    printf("a. Trung binh cong cua cac so chia het cho 5 la: %.2f\n", avg);

    countNegative = 0;
    countEven = 0;
    for(i = 0; i < size; i++) {
        if(numbers[i] < 0) {
            countNegative++;
        }
        if(numbers[i] % 2 == 0) {
            countEven++;
        }
    }
    printf("b. Day so co %d so am va %d so chan.\n", countNegative, countEven);

    return 0;
}