結果
問題 | No.2806 Cornflake Man |
ユーザー | pitP |
提出日時 | 2024-07-12 22:15:54 |
言語 | C++23(gcc13) (gcc 13.2.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 5,175 bytes |
コンパイル時間 | 9,573 ms |
コンパイル使用メモリ | 338,540 KB |
実行使用メモリ | 20,964 KB |
最終ジャッジ日時 | 2024-07-12 22:16:18 |
合計ジャッジ時間 | 22,026 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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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 | 1,493 ms
16,052 KB |
testcase_01 | AC | 58 ms
6,820 KB |
testcase_02 | AC | 275 ms
6,944 KB |
testcase_03 | AC | 56 ms
6,944 KB |
testcase_04 | AC | 302 ms
6,944 KB |
testcase_05 | AC | 12 ms
6,940 KB |
testcase_06 | AC | 883 ms
6,940 KB |
testcase_07 | AC | 87 ms
6,940 KB |
testcase_08 | AC | 797 ms
6,940 KB |
testcase_09 | AC | 41 ms
6,940 KB |
testcase_10 | AC | 677 ms
6,940 KB |
testcase_11 | AC | 84 ms
6,940 KB |
testcase_12 | AC | 872 ms
6,940 KB |
testcase_13 | AC | 1,837 ms
7,164 KB |
testcase_14 | AC | 324 ms
6,944 KB |
testcase_15 | TLE | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
ソースコード
#include <bits/stdc++.h> #include <atcoder/all> using namespace std; using namespace atcoder; istream &operator>>(istream &is, modint &a) { long long v; is >> v; a = v; return is; } ostream &operator<<(ostream &os, const modint &a) { return os << a.val(); } istream &operator>>(istream &is, modint998244353 &a) { long long v; is >> v; a = v; return is; } ostream &operator<<(ostream &os, const modint998244353 &a) { return os << a.val(); } istream &operator>>(istream &is, modint1000000007 &a) { long long v; is >> v; a = v; return is; } ostream &operator<<(ostream &os, const modint1000000007 &a) { return os << a.val(); } typedef long long ll; typedef vector<vector<int>> Graph; typedef pair<int, int> pii; typedef pair<ll, ll> pll; #define FOR(i,l,r) for (int i = l;i < (int)(r); i++) #define rep(i,n) for (int i = 0;i < (int)(n); i++) #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() #define my_sort(x) sort(x.begin(), x.end()) #define my_max(x) *max_element(all(x)) #define my_min(x) *min_element(all(x)) template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } const int INF = (1<<30) - 1; const ll LINF = (1LL<<62) - 1; const int MOD = 998244353; const int MOD2 = 1e9+7; const double PI = acos(-1); vector<int> di = {1,0,-1,0}; vector<int> dj = {0,1,0,-1}; #ifdef LOCAL # include <debug_print.hpp> # define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__) #else # define debug(...) (static_cast<void>(0)) #endif // https://algo-method.com/tasks/553/editorial // Miller-Rabin 素数判定法 template<class T> T pow_mod(T A, T N, T M) { T res = 1 % M; A %= M; while (N) { if (N & 1) res = (res * A) % M; A = (A * A) % M; N >>= 1; } return res; } bool is_prime(long long N) { if (N <= 1) return false; if (N == 2 || N == 3) return true; if (N % 2 == 0) return false; vector<long long> A = {2, 325, 9375, 28178, 450775, 9780504, 1795265022}; long long s = 0, d = N - 1; while (d % 2 == 0) { ++s; d >>= 1; } for (auto a : A) { if (a % N == 0) return true; long long t, x = pow_mod<__int128_t>(a, d, N); if (x != 1) { for (t = 0; t < s; ++t) { if (x == N - 1) break; x = __int128_t(x) * x % N; } if (t == s) return false; } } return true; } // Pollard のロー法 long long gcd(long long A, long long B) { A = abs(A), B = abs(B); if (B == 0) return A; else return gcd(B, A % B); } long long pollard(long long N) { if (N % 2 == 0) return 2; if (is_prime(N)) return N; auto f = [&](long long x) -> long long { return (__int128_t(x) * x + 1) % N; }; long long step = 0; while (true) { ++step; long long x = step, y = f(x); while (true) { long long p = gcd(y - x + N, N); if (p == 0 || p == N) break; if (p != 1) return p; x = f(x); y = f(f(y)); } } } vector<long long> prime_factorize(long long N) { if (N == 1) return {}; long long p = pollard(N); if (p == N) return {p}; vector<long long> left = prime_factorize(p); vector<long long> right = prime_factorize(N / p); left.insert(left.end(), right.begin(), right.end()); sort(left.begin(), left.end()); return left; } vector<int> make_divisors(int x){ vector<int> ans = {1}; unordered_map<int, int> mp; for(auto &p : prime_factorize(x)) mp[p]++; for(auto itr = mp.begin(); itr != mp.end(); itr++){ auto [p, e] = *itr; int s = ans.size(); for(int i=0;i<s;i++){ int v = 1; for(int j=0;j<e;j++){ v *= p; ans.emplace_back(ans[i] * v); } } } sort(all(ans)); return ans; } int main(){ cin.tie(0); ios_base::sync_with_stdio(false); int N, M; cin >> N >> M; vector<int> A(N); rep(i, N) cin >> A[i]; sort(all(A)); debug(A); unordered_map<int, int> mp; mp[A[1]] = 1; vector<int> ans = {A[1]}; FOR(i, 2, N){ bool f = true; if((int)ans.size() < 100){ for(auto &p : ans){ if((A[i] % p) == 0) { f = false; mp[p]++; } } } else{ for(auto &d : make_divisors(A[i])){ if(ans.back() < d) break; if(mp.count(d)){ mp[d]++; f = false; } } } if(f) { ans.emplace_back(A[i]); mp[A[i]] = 1; } } for(auto itr = mp.begin(); itr != mp.end(); itr++){ auto [d, e] = *itr; if(M / d != e){ cout << -1 << endl; return 0; } } cout << (int)ans.size() << endl; rep(i, (int)ans.size()) cout << ans[i] << (i == (int)ans.size() - 1 ? "\n" : " "); }