- #include <cstdio>
- #include <cstring>
- #include <string>
- #include <iostream>
- #include <cmath>
- #include <algorithm>
- using namespace std;
- int main()
- {
- int arr[127]={0};
- char chr;
- int i;
- for(i=0;i<2;i++)
- {
- while((chr=getchar())!='\n')
- {
- if(arr[chr]==0)
- {
- arr[chr]=1;
- cout<<chr;
- }
- }
- }
- cout<<endl;
- return 0;
- }
来源: http://www.bubuko.com/infodetail-3379274.html