Submission

Score: 100

User: cj

Problemset: สตริงซ้ำซ้ำ

Language: cpp

Time: 0.004 second

Submitted On: 2026-09-27 15:19:27

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

int main() {
    string a, b;
    bool c[256] = {false};
    cin >> b >> a;
    for (int i = 0; i < a.length(); i++) {
        for (int j = 0; j < b.length(); j++) {
            unsigned char ch = a[i];
            if (a[i] == b[j] && !c[ch]) {
                cout << a[i];
                c[ch] = true;
            }
        }
    }
    return 0;
}