题解

很简单啊

#include<bits/stdc++.h>
using namespace std;
int main()
{	
	int n,a,sum=0;
	cin>>n;
	while(true)
	{
		a=n%10;
		cout<<a<<" ";
		n=n/10;
		if(n==0) break;
	}

	return 0;
}