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#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
void read_numbers(int *dst, int count);
int main() {
enum { N = 3 };
int numbers[N];
read_numbers(numbers, N);
char all_equal = 1;
int max = numbers[0];
for (int i = 1; i < N; i++) {
all_equal = all_equal && numbers[i] == max;
if (numbers[i] > max) max = numbers[i];
}
if (all_equal) printf("All numbers are equal.\n");
else printf("%d is the greatest among the numbers entered.\n", max);
}
void read_numbers(int *dst, int count) {
assert(count > 0);
printf("Enter %d numbers.\n", count);
for (int i = 0; i < count; /*empty*/) {
printf("#%d: ", i+1);
int c = scanf("%d", &dst[i]);
if (c == EOF) abort();
if (c != 1) {
printf("Sorry, invalid input. Try again.\n");
while ((c = getchar()) != EOF && c != '\n');
if (c == EOF) abort();
} else
i++;
}
}
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