#include <iostream> #include <string> #include <vector> #include <algorithm> using namespace std; int arr[26]; vector<char> result; void init() { for (int i = 0; i < 26; ++i){ arr[i] = 0; } } int main() { string str1; string str2; while (cin >> str1) { cin >> str2; init(); result.clear(); for (int i = 0; i < str1.length(); ++i) { if (arr[str1[i] - 'a'] == 0) { arr[str1[i] - 'a'] ++; } } for (int i = 0; i < str2.length(); ++i) { if (arr[str2[i] - 'a'] != 0) { result.push_back(str2[i]); arr[str2[i] - 'a'] = 0; } } sort(result.begin(),result.end()); for (int i = 0; i < result.size(); ++i) { cout << result[i]; } cout << endl; } } |
Double click to view unformatted code.