题解 | #小乐乐与序列#

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
int main()
{
	int arr[100001] = { 0 };
	int k = 0, i = 0;
	int n = 0;
	int max = 0;
	scanf("%d", &k);
	for (i = 0; i < k; i++)
	{
		scanf("%d", &n);
		if (max < n)
			max = n;
		if (arr[n] == 0)
			arr[n]++;
	}

	for (i = 0; i <= max; i++)
	{
		if (arr[i])
			printf("%d ", i);
	}
	return 0;
}