Submission

Score: 100

User: Prap

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-13 18:56:37

#include <stdio.h>
#include <string.h>
int main () {
	int c;
	char nig[20];
	scanf("%s",nig);
	int min = 0;
	int a[123] = {0};
	for (int i = 0; i<strlen(nig); i++) {
		a[nig[i]]++;
	}
	for (int i = 65; i<123; i++) {
		if (a[i] == 1) {
			printf("%c",char(i));
			return 0;
		}
	}
	return 0;
}