Submission

PPPPPPPPPP

Score: 100

User: tankunkid

Problemset: ตัวอักษรตัวแรกในคำ

Language: c

Time: 0.002 second

Submitted On: 2024-10-16 21:13:18

#include <stdio.h>

int main(void) {
    char string[20];
    int dupe;
    scanf("%s", string);
    for (int i = 0; string[i] != '\0'; i++)
    {
        dupe = 0;
        for (int j = i+1; string[j] != '\0'; j++)
            if(string[i] == string[j])
            {
                string[j] = ' ';
                dupe = 1;
            }
        if (dupe == 1)
            string[i] = ' ';
    }
    char min = 'Z';

    for (int i = 0; string[i] != '\0'; i++)
    {
        if (string[i] < min && string[i] >= 'A' && string[i] <= 'Z')
            min = string[i];
    }
    printf("%c", min);
}