Submission

Score: 30

User: Peam

Problemset: ตัวอักษรตัวแรกในคำ

Language: c

Time: 0.002 second

Submitted On: 2025-10-08 17:39:17

#include <stdio.h>
int main(){
    char string[21];
    scanf("%s", string);

    int cnt;
    for(int i = 0; string[i] != '\0'; i++){
        cnt = 0;
        for(int j = 0; string[j] != '\0'; j++){
            if(string[i] == string[j]){
                cnt++;
            }
        }
        if(cnt == 1){
            printf("%c", string[i]);
            return 0;
        }
    }


    return 0;
}