Submission

PP------P-

Score: 30

User: Buktep

Problemset: ตัวอักษรตัวแรกในคำ

Language: c

Time: 0.001 second

Submitted On: 2024-10-16 20:51:53

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

int main()
{
    char w[21];
    int u;

    scanf("%s", w);
    for (int i = 0; i < strlen(w); i++)
    {
        u = 1;
        for (int j = 0; j < strlen(w); j++)
        {
            if (w[i] == w[j] && i != j)
            {
                u = 0;
                break;
            }
        }
        if (u)
        {
            printf("%c\n", w[i]);
            break;
        }
    }
    return 0;
}