Submission #66314372

Source Code Expand

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#include <bits/stdc++.h>
using namespace std;
int main() {
    int N;
    cin >> N;
    set<int> st;
    for (int i = 0; i < N; i++) {
        int a;
        cin >> a;
        st.insert(a);
    }
    cout << st.size() << "\n";
    for (int x : st) {
        cout << x << ' ';
    }
    cout << "\n";
    return 0;
}
 
 
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#include <bits/stdc++.h>
using namespace std;

int main() {
    int N;
    cin >> N;
    set<int> st;
    for (int i = 0; i < N; i++) {
        int a;
        cin >> a;
        st.insert(a);
    }
    cout << st.size() << "\n";
    for (int x : st) {
        cout << x << ' ';
    }
    cout << "\n";
    return 0;
}

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