Submission

Score: 100

User: rukdk

Problemset: เรียงสตริง

Language: cpp

Time: 0.004 second

Submitted On: 2026-08-07 21:19:57

#include<bits/stdc++.h>
#include<string>
#include<set>
using namespace std;
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	string s;
	if(cin>>s){
		set<char>unique_chars(s.begin(),s.end());
		bool first=true;
		for(char c:unique_chars){
			if(!first){
				cout<<" ";
			}
			cout<<c;
			first=false;
		}
		cout<<"\n";
	}
}