Submission

Score: 100

User: Catpao

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2025-09-26 18:22:36

#include<bits/stdc++.h>
using namespace std;
int cnt[100];
int main()
{
	int max = -10000000,min = 10000000;
	string a;
	cin>>a;
	for(int i=0;i<a.size();i++){
		int b = a[i] - 'A';
		if(b > max){
			max = b;
		}
		cnt[b]++;
	}
	for(int i=0;i<max;i++){
		if(cnt[i] == 1){
			int c = i + 65;
			if(c < min){
				min = c;
			}
		}
	}
	cout<<(char)min;
}