Submission

Score: 100

User: colo39

Problemset: สตริงซ้ำซ้ำ

Language: cpp

Time: 0.002 second

Submitted On: 2026-09-30 15:53:56

#include <bits/stdc++.h>
using namespace std;
set<char> ss1;
set<char> ss2;
map<char,int> mp;
int main () {
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    string s1,s2;
    cin >> s1 >> s2;
    for (auto c : s1) {
        ss1.insert(c);
    }
    for (auto c : s2) {
        ss2.insert(c);
    }
    for (auto c : ss2) {
        if (mp[c] == 0) mp[c]++;
    }

    for (auto c : ss1) {
        if (mp[c] == 1) mp[c]++;
    }
    
    for (auto c : mp) {
        if (c.second > 1) cout << c.first << " ";
    }

}