Submission

Score: 70

User: Jxricho

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-16 11:37:34

#include<bits/stdc++.h>
using namespace std;
main(){
	string s;
	cin>>s;
	int cnt[26]={};
	for(auto x:s){
		cnt[x]++;
	}
	sort(s.begin(),s.end());
	for(int i=0;i<s.size();i++){
		if(cnt[s[i]]==1){
			cout<<s[i];break;
		}
	}
}