Submission

Score: 100

User: angpangSK

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2025-09-24 07:47:12

#include <iostream>
#include <algorithm>
#include <string>
using namespace std;

int main() {
    string word;
    cin >> word;

    string sorted = word;
    sort(sorted.begin(), sorted.end());

    for (int i = 0; i < sorted.size(); i++) {
        bool left_same = (i > 0 && sorted[i] == sorted[i - 1]);
        bool right_same = (i + 1 < sorted.size() && sorted[i] == sorted[i + 1]);
        if (!left_same && !right_same) {
            cout << sorted[i] << endl;
            return 0;
        }
    }
}