Submission

Score: 100

User: por

Problemset: ตัวอักษรตัวแรกในคำ

Language: c

Time: 0.002 second

Submitted On: 2025-09-26 21:21:16

#include <stdio.h>
#include <string.h>
int main(){

    char x[20];
    scanf("%s", &x);
    int cntl=111110;

    int arr[256] ={};
    for (int i = 0; x[i] != '\0'; i++) {
        arr[x[i]]++;
       // printf("B");
    }

    for(int i=0;i<strlen(x);i++){
        if(cntl>x[i]){
            if(arr[x[i]]==1){
                cntl= x[i];
              //  printf("c");
            }
        }

    }// cnt = first letter



    printf("%c", cntl);

    return 0;


}