Submission

PP------P-

Score: 30

User: Pera

Problemset: ตัวอักษรตัวแรกในคำ

Language: c

Time: 0.002 second

Submitted On: 2024-10-16 19:49:23

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

int main(void) {
    char str[100];
    scanf("%s", str);
    int length = strlen(str);
    char alpha[26];
    for (int i = 0; i < 26; i++) alpha[i] = 0;

    for (int i = 0; i < length; i++) {
        alpha[str[i] - 'A']++;
    }

    int found = 0;
    for (int i = 0; i < length; i++) {
        if (found) break;
        for (int j = 0; j < 26; j++) {
            if (str[i] == j + 'A' && alpha[j] == 1) {
                printf("%c\n", str[i]);
                found = 1;
                break;
            }
        }
    }
}