Submission

Score: 100

User: Alif_Sama

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.003 second

Submitted On: 2025-09-24 16:18:50

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

int main() {
    string n;
    cin >> n;
    int cnt[256] = {0};
    for(int i = 0; i < n.length(); i++) {
        cnt[n[i]]++;
    }
    for(int i = 0; i < 256; i++) {
        if (cnt[i] == 1) {
            cout << char(i);
            break;
        }
    }
}