题解 | #提取不重复的整数#
提取不重复的整数
http://www.nowcoder.com/practice/253986e66d114d378ae8de2e6c4577c1
C++
#include<iostream>
#include<map>
using namespace std;
int main()
{
int num;
cin>>num;
map<int,int> repeat;
while(num)
{
int temp = num%10;
if(repeat.find(temp)== repeat.end())
{
repeat[temp] = 0;
cout<<temp;
}
num = num/10;
}
}