Submission

Status:

PPPPPPPPPP

Score: 100

User: Buktep

Problemset: ตัวอักษรตัวแรกในคำ

Language: c

Time: 0.002 second

Submitted On: 2024-10-16 20:56:06

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

int main()
{
    char w[21];
    int counts[256] = {0};

    scanf("%s", w);
    int len = strlen(w);

    for (int i = 0; i < len; i++)
    {
        counts[(unsigned char)w[i]]++;
    }

    for (int i = 'A'; i <= 'Z'; i++)
    {
        if (counts[i] == 1)
        {
            printf("%c\n", (char)i);
            return (0);
        }
    }
    
    return (0);
}