Submission

Score: 100

User: cyblox_boi

Problemset: สตริงซ้ำซ้ำ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-16 08:48:23

#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    vector<string> texts(2);

    for (int i = 0; i < 2; i++)
    {
        cin >> texts[i];
    }

    if (texts[1].length() > texts[0].length())
    {
        swap(texts[0], texts[1]);
    }

    set<char> duplicate;

    for (int i = 0; i < texts[0].length(); i++)
    {
        if (find(texts[1].begin(), texts[1].end(), texts[0][i]) != texts[1].end())
        {
            duplicate.emplace(texts[0][i]);
        }
    }

    for (const char &i : duplicate)
    {
        cout << i << ' ';
    }

    cout << '\n';

    return 0;
}