Submission

Score: 100

User: limsan20122

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.003 second

Submitted On: 2025-09-30 19:16:59

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

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    string x;
    cin >> x;
    int box[122]={0};
    for(int i=0;i<x.length();i++){
        box[int(x[i])]++;
    }
   for(int i=0;i<122;i++){
        if(box[i]==1){
            cout << char(i);
            break;
        }
   }
    return 0;
}