Submission

Score: 40

User: I_am_me

Problemset: ตัวอักษรตัวแรกในคำ

Language: c

Time: 0.003 second

Submitted On: 2025-09-25 10:11:01

#include <stdio.h>
#include <stdio.h>
#include <string.h>
int main()
{
    char word[20] ;
    scanf("%s",&word) ;
    int size = strlen(word) ;
    for(int i = 0;i<size;i++) {
        int j = i;
        while(j-1>=0 && word[j]<word[j-1]) {
            char swp = word[j] ;
            word[j] = word[j-1] ;
            word[j-1] = swp;
            j--;
        }
    }
    // for(int i =0;i<size;i++) {
    //     printf("%c",word[i]) ;
    // }
    // printf("\n") ;
    char ans[size] ;
    for(int i = 0;i<size;i++) {
        if(size > 1 && (i == 0 && word[0] != word[1]|| word[i] != word[i-1] && word[i+1] != word[i])) {
            ans[i] = word[i] ;
        }
        else ans[0] = word[0] ;
    }
    printf("%c",ans[0]) ;
}