Submission

Score: 100

User: asdasd

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-12 15:23:43

#include <stdio.h>
#include <string.h>
int main(){
    char word[20];
    scanf("%s",word);
    int len = strlen(word);
    for(int i = 0 ; i<len-1 ; i++){
        for(int j = 0 ; j<len-i-1 ; j++){
            if(word[j]>word[j+1]){
                char temp = word[j];
                word[j]=word[j+1];
                word[j+1]=temp;
            }
        }
    }
    for(int i = 0 ; i<len ; i++){
        if(word[i]!=word[i+1]){
            if(word[i]!=word[i-1]){
                printf("%c",word[i]);
                break;
            }
        }
    }
}