結果
問題 | No.1330 Multiply or Divide |
ユーザー |
|
提出日時 | 2024-06-21 19:22:32 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 149 ms / 2,000 ms |
コード長 | 3,332 bytes |
コンパイル時間 | 1,537 ms |
コンパイル使用メモリ | 158,100 KB |
実行使用メモリ | 9,072 KB |
最終ジャッジ日時 | 2025-06-20 02:12:09 |
合計ジャッジ時間 | 5,524 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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ファイルパターン | 結果 |
---|---|
other | AC * 51 |
ソースコード
#include <algorithm> #include <cassert> #include <cstdio> #include <cstdlib> #include <cstring> #include <cmath> #include <iostream> #include <numeric> #include <vector> #include <map> #include <set> #include <queue> #include <functional> #include <iomanip> using namespace std; using ll = long long; class range {private: struct I{int x;int operator*(){return x;}bool operator!=(I& lhs){return x<lhs.x;}void operator++(){++x;}};I i,n; public:range(int n_):i({0}),n({n_}){}range(int i_,int n_):i({i_}),n({n_}){}I& begin(){return i;}I& end(){return n;}}; template<typename T, typename U> ostream& operator<<(ostream& os, const pair<T, U>& p){ return os << "{" << p.first << ", " << p.second << "}"; } template<typename T> ostream& operator<<(ostream& os, const vector<T>& obj) { os << "{"; for (const auto& e : obj) os << e << ", "; return os << "}"; } template<typename T> ostream& operator<<(ostream& os, const set<T>& obj) { os << "set{"; for (const auto& e : obj) os << e << ", "; return os << "}"; } template<typename T, typename U> ostream& operator<<(ostream& os, const map<T, U>& obj) { os << "map{"; for (const auto& e : obj) os << e << ", "; return os << "}"; } template<typename T> void take(vector<T>& vec, int n) { vec.resize(n); for (int i = 0; i < n; ++i) cin >> vec[i]; } #ifdef ONLINE_JUDGE #define dump(expr) ; #else #define dump(expr) { cerr << "\033[33m#L" << __LINE__ << ": " << expr << "\033[39m" << endl; } #endif namespace solver { template<typename T1, typename T2> struct In2 { T1 a; T2 b; friend std::istream& operator>>(std::istream& is, In2& obj) { T1 t1; T2 t2; is >> t1 >> t2; obj = {t1, t2}; return is; } }; template<typename T1, typename T2, typename T3> struct In3 { T1 a; T2 b; T3 c; friend std::istream& operator>>(std::istream& is, In3& obj) { T1 t1; T2 t2; T3 t3; is >> t1 >> t2 >> t3; obj = {t1, t2, t3}; return is; } }; ll n, m, p; vector<ll> vs; void read() { cin >> n >> m >> p; take(vs, n); } template<typename T> void vec_unique(vector<T>& v) { ranges::sort(v); auto result = ranges::unique(v); v.erase(result.begin(), result.end()); } template <typename T> T chmin(T& a, T b) { return a = min(a, b); } template <typename T> T chmax(T& a, T b) { return a = max(a, b); } using RetType = ll; RetType run() { vector<ll> kinds; for (ll d = 1; d * d <= m; ++d) { kinds.push_back(d); kinds.push_back(m / d); } vec_unique(kinds); vec_unique(vs); dump(kinds); map<ll, ll> vals; // [cost] => max possible a[i] for (int i : range(n)) { ll a = vs[i]; ll cost = 1; while (a % p == 0) a /= p, cost++; if (a == 1) continue; chmax(vals[cost], a); } map<ll, ll> dp; ll maxval = *ranges::max_element(vs); for (auto key : kinds) { if (key < maxval) dp[key] = 1; else { dp[key] = 1000; for (auto it : vals) { chmin(dp[key], dp[key / it.second] + it.first); } } } return dp[m] < 1000 ? dp[m] : -1; } } // namespace template <typename F> void run(F f) { if constexpr (std::is_same_v<decltype(f()), void>) f(); else cout << f() << endl; } int main(int argc, char** argv) { cerr << fixed << setprecision(12); cout << fixed << setprecision(12); int testcase = 1; if (argc > 1) testcase = atoi(argv[1]); while (testcase--) { solver::read(); } run(solver::run); }