Submission

Score: 100

User: jeeno987

Problemset: เรียงสตริง

Language: cpp

Time: 0.003 second

Submitted On: 2026-10-10 18:16:53

#include <iostream>
#include <string>
using namespace std;

int main() {
    string s;
    cin >> s;
    bool seen[256] = {false};
    for (int i = 0; i < (int)s.size(); i++) seen[(unsigned char)s[i]] = true;
    bool first = true;
    for (int c = 'A'; c <= 'Z'; c++)
        if (seen[c]) { if (!first) cout << ' '; cout << (char)c; first = false; }
    for (int c = 'a'; c <= 'z'; c++)
        if (seen[c]) { if (!first) cout << ' '; cout << (char)c; first = false; }
    cout << '\n';
    return 0;
}