Submission

Score: 100

User: sakuragichan

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2026-09-08 07:21:34

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

int main() {
    string c,r;
    cin >> c;
    for (int i = 0; i <= c.length(); ++i) {
        int n = count(c.begin(), c.end(), c[i]);
        if (n == 1) {
            r += c[i];
        }
    }
    sort(r.begin(),r.end());
    cout << r[0];
    return 0;
}