結果
問題 | No.2523 Trick Flower |
ユーザー | ei1333333 |
提出日時 | 2023-10-27 22:08:33 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,057 bytes |
コンパイル時間 | 4,898 ms |
コンパイル使用メモリ | 270,948 KB |
実行使用メモリ | 22,432 KB |
最終ジャッジ日時 | 2024-09-25 14:13:38 |
合計ジャッジ時間 | 7,187 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
(要ログイン)
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 | 2 ms
6,812 KB |
testcase_01 | AC | 2 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | WA | - |
testcase_08 | AC | 3 ms
6,940 KB |
testcase_09 | WA | - |
testcase_10 | AC | 2 ms
6,944 KB |
testcase_11 | AC | 2 ms
6,944 KB |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | AC | 45 ms
12,500 KB |
testcase_18 | AC | 47 ms
14,720 KB |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | AC | 76 ms
12,544 KB |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | AC | 15 ms
6,940 KB |
testcase_30 | WA | - |
testcase_31 | AC | 4 ms
6,940 KB |
testcase_32 | WA | - |
testcase_33 | WA | - |
ソースコード
#include<bits/stdc++.h> #include<atcoder/all> using namespace std; using int64 = long long; constexpr int mod = 998244353; constexpr int64 infll = (1LL << 62) - 1; constexpr int inf = (1 << 30) - 1; struct IoSetup { IoSetup() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(10); cerr << fixed << setprecision(10); } } iosetup; template<typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &p) { os << p.first << " " << p.second; return os; } template<typename T1, typename T2> istream &operator>>(istream &is, pair<T1, T2> &p) { is >> p.first >> p.second; return is; } template<typename T> ostream &operator<<(ostream &os, const vector<T> &v) { for (int i = 0; i < (int) v.size(); i++) { os << v[i] << (i + 1 != v.size() ? " " : ""); } return os; } template<typename T> istream &operator>>(istream &is, vector<T> &v) { for (T &in : v) is >> in; return is; } template<typename T1, typename T2> inline bool chmax(T1 &a, T2 b) { return a < b && (a = b, true); } template<typename T1, typename T2> inline bool chmin(T1 &a, T2 b) { return a > b && (a = b, true); } template<typename T = int64> vector<T> make_v(size_t a) { return vector<T>(a); } template<typename T, typename... Ts> auto make_v(size_t a, Ts... ts) { return vector<decltype(make_v<T>(ts...))>(a, make_v<T>(ts...)); } template<typename T, typename V> typename enable_if<is_class<T>::value == 0>::type fill_v(T &t, const V &v) { t = v; } template<typename T, typename V> typename enable_if<is_class<T>::value != 0>::type fill_v(T &t, const V &v) { for (auto &e : t) fill_v(e, v); } template<typename F> struct FixPoint : F { explicit FixPoint(F &&f) : F(forward<F>(f)) {} template<typename... Args> decltype(auto) operator()(Args &&... args) const { return F::operator()(*this, forward<Args>(args)...); } }; template<typename F> inline decltype(auto) MFP(F &&f) { return FixPoint<F>{forward<F>(f)}; } int main() { int N; cin >> N; vector< int > A(N), B(N), C(N); cin >> A >> B >> C; for(auto& c : C) --c; int64 ok = 0, ng = infll; atcoder::dsu uf(N); vector< int > deg(N); for(int i = 0; i < N; i++) { deg[C[i]]++; uf.merge(i, C[i]); } queue< int > que; for(int i = 0; i < N; i++) { if(deg[i] == 0) { que.emplace(i); } } vector< vector< int > > g(N); while(not que.empty()) { auto i = que.front(); que.pop(); --deg[C[i]]; g[C[i]].emplace_back(i); if(deg[C[i]] == 0) { que.emplace(C[i]); } } vector< vector< int > > group(N); vector< int64 > need(N), sum(N); for(int i = 0; i < N; i++) { if(deg[i] > 0) { int now = i; do { deg[now] = 0; group[uf.leader(i)].emplace_back(now); sum[uf.leader(i)] += A[now]; need[uf.leader(i)] += B[now]; } while (now != i); } } auto check = [&](int64 x) { for(int i = 0; i < N; i++) { if(group[i].empty()) { continue; } if((__int128_t)need[i] * x > infll) { return false; } __int128_t rest = sum[i] - need[i] * x; if(rest < 0) { return false; } for(auto& p : group[i]) { bool f = true; auto dfs = MFP([&](auto dfs, int idx) -> pair< int64, int64 > { int64 need = 0; if(p != idx) { need -= A[idx]; need += (__int128_t) B[idx] * x; if(need > infll) { f = false; return {0, 0}; } } int64 tap = 0; for(auto& to : g[idx]) { auto res = dfs(to); need += res.first; chmax(tap, res.second); } chmax(tap, need); return {need, tap}; }); rest -= dfs(p).second; if(rest < 0 or not f) { return false; } } } return true; }; while(ng - ok > 1) { auto mid = (ok + ng) / 2; if(check(mid)) ok = mid; else ng = mid; } cout << ok << endl; }