Submission

Score: 100

User: Habibi

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-13 21:05:12

#include<stdio.h>
#include<string.h>
int main(){
	char string[20];
	scanf("%s",string);
	int n=strlen(string);
	int ch;
	int arr[91]={0};
	for(int i=0;i<n;i++){
		ch=string[i];
		arr[ch]=arr[ch]+1;
	}
	for(int i=65;i<91;i++){
		if(arr[i]==1){
			printf("%c",i);
			return 0;
		}
	}
	return 0;
}