Submission

Score: 90

User: mnmpyuuu

Problemset: ตัวอักษรตัวแรกในคำ

Language: c

Time: 0.002 second

Submitted On: 2025-10-11 01:15:14

#include<stdio.h>
#include<string.h>
int main()
{
    char a[21];
    char min='z'+1;
    char minbef;
    int c;
    scanf("%s",a);
    for(int i=0;i<strlen(a);i++){
        if(a[i]<min){
            minbef=min;
            min=a[i];
            c++;
        }
        else if(a[i]==min){
            min=minbef;
            c--;
        }
    }
    if(c!=0)
    {
        printf("%c",min);
    }

}