Submission

PP------P-

Score: 30

User: kami

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2024-10-16 22:35:14

#include <stdio.h>
#include <string.h>

char check(char c[], int len){
    for(int i = 0; i < len; i++){
        int u = 1;
        for(int j = 0; j < len; j++){
            if(c[i] == c[j] && i != j){
                u = 0;
                break;
            }
        }
        if(u){
            printf("%c",c[i]);
            break;
        }
    }
    return '\0';
}

int main(){
    char a[21];
    scanf("%s",a);
    int len = strlen(a);
    check(a, len);
}