求数组的最大值和次大值

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

/*
	求数组的最大值和次大值。
*/
int main() {
	int n;
	while (printf("Please input n:\n"),fflush(stdin), scanf("%d", &n) != EOF){
		if (n < 2){
			printf("Please input a bigger number.\n");
			continue;
		}
		printf("Please input %d numbers:\n",&n);
		int *numbers = (int*)malloc(n*sizeof(int));
		for (int i = 0; i < n; ++i)
			scanf("%d",numbers+i);
		int max1, max2;
		if (numbers[0] > numbers[1]){
			max1 = numbers[0];
			max2 = numbers[1];
		}
		else{
			max1 = numbers[1];
			max2 = numbers[0];
		}
		for (int i = 2; i < n; ++i)
			if (numbers[i] > max1){
				max2 = max1;
				max1 = numbers[i];
			}
			else if (numbers[i] > max2)
				max2 = numbers[i];
		printf("The biggest number is: %d\n", max1);
		printf("The second biggest number is: %d\n", max2);
	}
	system("pause");
	return 0;
}