Submission

Score: 30

User: Ratthathammanoon

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-12 22:25:42

#include <stdio.h>
#include <string.h>
int main(){
	char A[20];
	int found=0;
	
	scanf("%s",A);
	
	for(int i=0;i<strlen(A);i++){
		found = 0;
		for(int j=0;j<strlen(A);j++){
			if(i==j){
				continue;
			}
			if(A[i]==A[j]){
				found=1;
			}
		}
		if(found==0){
				printf("%c",A[i]);
				return 0;
			}
	}
}