Submission

Score: 100

User: 38408

Problemset: สตริงซ้ำซ้ำ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-06 11:23:19

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

int main(){
    string a1, a2;
    cin >> a1 >> a2;

    bool used[256] = {};

    for(int i = 0; i < a1.size(); i++)
    {
        if(a2.find(a1[i]) != string::npos && !used[a1[i]])
        {
            cout << a1[i];
            used[a1[i]] = true;
        }
    }

    return 0;
}