题解 | #整数去重#

int main()
{
	int n = 0;
	scanf("%d", &n);
	int m = n;
	int count = 1;
	while (m >= 10)//98754
	{
		m /= 10;
		count++;
	}
	int n1 = 0;//存放取模后的n
	int i = 0;
	int j = 0;
	int arr[100] = { 0 };//创建个数组存放数字
	while (n >= 1)
	{
		int count3 = 0;
	     n1 = n % 10;
	   for (i = 0; i < j; i++)//每次存放之前先遍历一遍已经存放了的位置是否有相同的数字
	   {
		  
		   if (arr[i] != n1)
		   {
			   count3++;//计数 
           }
		   else 
			break;//如果已经有了重复的数字就直接跳出循环
	   }
	   if (count3 == j)
	   {
		   arr[j] = n1;
		   j++;
	   }
		n /= 10;
	}
    //打印
	for (i = 0; i <j; i++)
	{
		printf("%d", arr[i]);
	}
	return 0;
}