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- nclude <stdio.h>
- int main() {
- double sum = 0, num = 0;
- long int number = 0;
- do {
- scanf("%ld", &number);
- if (number <= 0) {
- if (num == 0 && number != 0) {
- printf("no_entries ");
- } else {
- switch (number) {
- case 0:
- printf("\b");
- return 0;
- case -1:
- printf("%.2f ", (double) (sum / num));
- break;
- case -2:
- printf("%.2f ", (double) sum);
- break;
- }
- }
- } else {
- sum += number;
- num++;
- }
- } while (number != 0);
- return 0;
- }
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