Submission

Score: 100

User: letdown

Problemset: เรียงสตริง

Language: cpp

Time: 0.004 second

Submitted On: 2025-10-08 09:57:04

#include <iostream>

using namespace std;
int main() {
    string s;
    cin >> s;

    for (int i = 0; i < s.length(); i++) {
        int k = i;
        for (int j = i+1; j < s.length(); j++) {
            if (s[k] > s[j]) k = j;
        }
        int t = s[i];
        s[i] = s[k];
        s[k] = t;
    }

    char prev = ' ';
    for (int i = 0; i < s.length(); i++) {
        if (prev != s[i]) cout << s[i] << " ";
        prev = s[i];
    }
}