Submission

Score: 100

User: mister_o_hater_no1

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-06 23:12:05

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

    int main() {
        string word;cin>> word;
        int alpha[26]= {0};
        for(int i= 0; i< word.length(); ++i) {
            word[i]== toupper(word[i]);
            alpha[word[i]- 65]++;
        }
        for(int i= 0; i< 26; ++i) {
            if(alpha[i]== 1) {
                cout<< (char)(i+ 65);
                break;
            }
        }

        return 0;
    }