Submission

Score: 100

User: Folk_DIWA

Problemset: สตริงซ้ำซ้ำ

Language: cpp

Time: 0.002 second

Submitted On: 2026-10-13 00:02:26

#include <bits/stdc++.h>
using namespace std;

using ll = long long;

int main(){
    cin.tie(0)->sync_with_stdio(0);

    string a,b;
    cin >> a >> b;

    map <char,int> freqa, freqb;
    for(auto &x : a) freqa[x]++;
    for(auto &x : b) freqb[x]++;

    set <char> st;
    for(int i=0; i<a.size(); i++){
        if(freqa.count(a[i]) and freqb.count(a[i])) st.insert(a[i]);
    }

    for(auto &x : st) cout << x << ' ';

    return 0;
}