結果

問題 No.2806 Cornflake Man
ユーザー umimelumimel
提出日時 2024-07-12 21:58:31
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 188 ms / 2,000 ms
コード長 3,869 bytes
コンパイル時間 2,127 ms
コンパイル使用メモリ 187,376 KB
実行使用メモリ 14,488 KB
最終ジャッジ日時 2024-07-17 20:26:41
合計ジャッジ時間 4,193 ms
ジャッジサーバーID
(参考情報)
judge5 / judge2
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 51 ms
8,832 KB
testcase_01 AC 139 ms
11,392 KB
testcase_02 AC 12 ms
5,376 KB
testcase_03 AC 154 ms
11,776 KB
testcase_04 AC 11 ms
5,376 KB
testcase_05 AC 25 ms
5,376 KB
testcase_06 AC 29 ms
6,656 KB
testcase_07 AC 188 ms
13,184 KB
testcase_08 AC 27 ms
6,272 KB
testcase_09 AC 83 ms
8,448 KB
testcase_10 AC 39 ms
6,400 KB
testcase_11 AC 6 ms
5,376 KB
testcase_12 AC 50 ms
6,784 KB
testcase_13 AC 113 ms
10,368 KB
testcase_14 AC 19 ms
5,376 KB
testcase_15 AC 174 ms
14,488 KB
testcase_16 AC 2 ms
5,376 KB
testcase_17 AC 2 ms
5,376 KB
testcase_18 AC 2 ms
5,376 KB
testcase_19 AC 2 ms
5,376 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using pll = pair<ll, ll>;
#define drep(i, cc, n) for (ll i = (cc); i <= (n); ++i)
#define rep(i, n) drep(i, 0, n - 1)
#define all(a) (a).begin(), (a).end()
#define pb push_back
#define fi first
#define se second
mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());
const ll MOD1000000007 = 1000000007;
const ll MOD998244353 = 998244353;
const ll MOD[3] = {999727999, 1070777777, 1000000007};
const ll LINF = 1LL << 60LL;
const int IINF = (1 << 30) - 1;


template<typename T> 
struct edge{
    int from;
    int to;
    T cost;
    int id;

    edge(){}
    edge(int to, T cost=1) : from(-1), to(to), cost(cost){}
    edge(int to, T cost, int id) : from(-1), to(to), cost(cost), id(id){}
    edge(int from, int to, T cost, int id) : from(from), to(to), cost(cost), id(id){}

    void reverse(){swap(from, to);}
};

template<typename T>
struct edges : std::vector<edge<T>>{
    void sort(){
        std::sort(
            (*this).begin(),
            (*this).end(), 
            [](const edge<T>& a, const edge<T>& b){
                return a.cost < b.cost;
            }
        );
    }
};

template<typename T>
struct graph : std::vector<edges<T>>{
    int n = 0;
    int m = 0;
    edges<T> es;
    bool directed;

    graph(int n, bool directed) : n(n), directed(directed){
        (*this).resize(n);
    }

    void add_edge(int from, int to, T cost=1){
        if(directed){
            es.push_back(edge<T>(from, to, cost, m));
            (*this)[from].push_back(edge<T>(from, to, cost, m++));
        }else{
            if(from > to) swap(from, to);
            es.push_back(edge<T>(from, to, cost, m));
            (*this)[from].push_back(edge<T>(from, to, cost, m));
            (*this)[to].push_back(edge<T>(to, from, cost, m++));
        }
    }
};

template<typename T>
struct redge{
    int from, to;
    T cap, cost;
    int rev;
    
    redge(int to, T cap, T cost=(T)(1)) : from(-1), to(to), cap(cap), cost(cost){}
    redge(int to, T cap, T cost, int rev) : from(-1), to(to), cap(cap), cost(cost), rev(rev){}
};

template<typename T> using Edges = vector<edge<T>>;
template<typename T> using weighted_graph = vector<Edges<T>>;
template<typename T> using tree = vector<Edges<T>>;
using unweighted_graph = vector<vector<int>>;
template<typename T> using residual_graph = vector<vector<redge<T>>>;


vector<long long> dijkstra(weighted_graph<long long> G, int src){
    int n = (int)G.size();

    vector<long long> dist(n, LINF);
    dist[src] = 0;
    priority_queue<pair<long long, int>, vector<pair<long long, int>>, greater<pair<long long, int>>> PQ;
    PQ.push({0, src});
    while(!PQ.empty()){
        int v = PQ.top().second;
        long long tmp = PQ.top().first;
        PQ.pop();
        if(dist[v] < tmp) continue;

        for(edge<long long> e : G[v]){
            if(dist[v]+e.cost < dist[e.to]){
                dist[e.to] = dist[v]+e.cost;
                PQ.push({dist[e.to], e.to});
            }
        }
    }

    return dist;
}


void solve(){
    int n, m; cin >> n >> m;
    vector<int> a(n);
    for(int i=0; i<n; i++) cin >> a[i];
    sort(all(a));

    map<int, bool> mp;
    for(int i=1; i<n; i++) mp[a[i]] = false;

    vector<int> ans;
    for(int i=1; i<n; i++) if(!mp[a[i]]){
        if(m/a[i]>n){
            cout << -1 << '\n';
            return;
        }

        for(int y=a[i]; y<=m; y+=a[i]){
            if(mp.find(y) != mp.end()){
                mp[y] = true;
            }else{
                cout << -1 << '\n';
                return;
            }
        }

        ans.pb(a[i]);
    }

    cout << (int)ans.size() << '\n';
    for(int v : ans) cout << v << ' ';
    cout << '\n';
}

int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    
    int T=1;
    //cin >> T;
    while(T--) solve();
}
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