提出 #66300773

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ソースコード 拡げる

#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
#define rep(i, l, r) for (ll i = (l); i < (r); ++i)
#define all(x) (x).begin(), (x).end()
using ll = long long;
using pl = pair<ll,ll>;
using vl = vector<ll>;
using vvl = vector<vector<ll>>;
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
using mint=modint998244353;



int main(){
    ll n;
    cin>>n;
    set<ll> s;
    rep(i,0,n){
        ll t;
        cin>>t;
        s.insert(t);
    }
    cout<<s.size()<<endl;
    for(auto d:s){
        cout<<d<<" ";
    }
    cout<<endl;
}

提出情報

ジャッジ結果