Submission

Score: 100

User: samsenpisardmoo26

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-06 23:11:37

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

int main()
{
    int arr[256];
    string s;
    cin >> s;
    sort(s.begin(), s.end());
    
    for(int i=0; i<256; i++)
    {
        arr[i] = 0;
    }
    
    for(int i=0; i<s.length(); i++) 
    {
        arr[(int)(s[i])]++;
    }
    
    for(int i=0; i<256; i++)
    {
        if(arr[i] == 1)
        {
            cout << (char)(i);
            return 0;
        }
    }
    
}