結果
問題 | No.1678 Coin Trade (Multiple) |
ユーザー | keijak |
提出日時 | 2021-09-13 13:39:21 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 746 ms / 5,000 ms |
コード長 | 5,538 bytes |
コンパイル時間 | 2,649 ms |
コンパイル使用メモリ | 224,532 KB |
実行使用メモリ | 12,460 KB |
最終ジャッジ日時 | 2024-06-25 13:05:09 |
合計ジャッジ時間 | 14,803 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 | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 58 ms
7,844 KB |
testcase_04 | AC | 335 ms
10,344 KB |
testcase_05 | AC | 135 ms
11,808 KB |
testcase_06 | AC | 105 ms
11,132 KB |
testcase_07 | AC | 274 ms
8,252 KB |
testcase_08 | AC | 189 ms
8,980 KB |
testcase_09 | AC | 144 ms
11,992 KB |
testcase_10 | AC | 76 ms
6,940 KB |
testcase_11 | AC | 264 ms
10,116 KB |
testcase_12 | AC | 58 ms
6,944 KB |
testcase_13 | AC | 553 ms
11,380 KB |
testcase_14 | AC | 163 ms
7,680 KB |
testcase_15 | AC | 184 ms
9,784 KB |
testcase_16 | AC | 48 ms
9,912 KB |
testcase_17 | AC | 153 ms
12,132 KB |
testcase_18 | AC | 2 ms
6,944 KB |
testcase_19 | AC | 2 ms
6,944 KB |
testcase_20 | AC | 2 ms
6,944 KB |
testcase_21 | AC | 2 ms
6,940 KB |
testcase_22 | AC | 2 ms
6,944 KB |
testcase_23 | AC | 2 ms
6,940 KB |
testcase_24 | AC | 2 ms
6,940 KB |
testcase_25 | AC | 2 ms
6,944 KB |
testcase_26 | AC | 2 ms
6,940 KB |
testcase_27 | AC | 2 ms
6,944 KB |
testcase_28 | AC | 2 ms
6,940 KB |
testcase_29 | AC | 2 ms
6,940 KB |
testcase_30 | AC | 2 ms
6,940 KB |
testcase_31 | AC | 2 ms
6,940 KB |
testcase_32 | AC | 2 ms
6,940 KB |
testcase_33 | AC | 2 ms
6,940 KB |
testcase_34 | AC | 2 ms
6,944 KB |
testcase_35 | AC | 2 ms
6,940 KB |
testcase_36 | AC | 2 ms
6,940 KB |
testcase_37 | AC | 2 ms
6,940 KB |
testcase_38 | AC | 2 ms
6,944 KB |
testcase_39 | AC | 2 ms
6,944 KB |
testcase_40 | AC | 2 ms
6,940 KB |
testcase_41 | AC | 2 ms
6,944 KB |
testcase_42 | AC | 2 ms
6,944 KB |
testcase_43 | AC | 2 ms
6,944 KB |
testcase_44 | AC | 2 ms
6,944 KB |
testcase_45 | AC | 2 ms
6,940 KB |
testcase_46 | AC | 2 ms
6,940 KB |
testcase_47 | AC | 2 ms
6,940 KB |
testcase_48 | AC | 726 ms
12,340 KB |
testcase_49 | AC | 702 ms
12,312 KB |
testcase_50 | AC | 703 ms
12,460 KB |
testcase_51 | AC | 728 ms
12,212 KB |
testcase_52 | AC | 721 ms
12,308 KB |
testcase_53 | AC | 746 ms
12,348 KB |
testcase_54 | AC | 701 ms
12,204 KB |
testcase_55 | AC | 697 ms
12,324 KB |
testcase_56 | AC | 679 ms
12,328 KB |
testcase_57 | AC | 699 ms
12,332 KB |
testcase_58 | AC | 399 ms
12,220 KB |
ソースコード
#include <bits/stdc++.h> #include <atcoder/mincostflow> #define REP_(i, a_, b_, a, b, ...) \ for (int i = (a), END_##i = (b); i < END_##i; ++i) #define REP(i, ...) REP_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__) #define ALL(x) std::begin(x), std::end(x) using i64 = long long; template<typename T, typename U> inline bool chmax(T &a, U b) { return a < b and ((a = std::move(b)), true); } template<typename T, typename U> inline bool chmin(T &a, U b) { return a > b and ((a = std::move(b)), true); } template<typename T> inline int ssize(const T &a) { return (int) std::size(a); } template<typename T> std::istream &operator>>(std::istream &is, std::vector<T> &a) { for (auto &x: a) is >> x; return is; } template<typename T, typename U> std::ostream &operator<<(std::ostream &os, const std::pair<T, U> &a) { return os << "(" << a.first << ", " << a.second << ")"; } template<typename Container> std::ostream &print_seq(const Container &a, std::string_view sep = " ", std::string_view ends = "\n", std::ostream &os = std::cout) { auto b = std::begin(a), e = std::end(a); for (auto it = std::begin(a); it != e; ++it) { if (it != b) os << sep; os << *it; } return os << ends; } template<typename T, typename = void> struct is_iterable : std::false_type {}; template<typename T> struct is_iterable<T, std::void_t<decltype(std::begin(std::declval<T>())), decltype(std::end(std::declval<T>()))>> : std::true_type { }; template<typename T, typename = std::enable_if_t< is_iterable<T>::value && !std::is_same<T, std::string_view>::value && !std::is_same<T, std::string>::value>> std::ostream &operator<<(std::ostream &os, const T &a) { return print_seq(a, ", ", "", (os << "{")) << "}"; } void print() { std::cout << "\n"; } template<class T> void print(const T &x) { std::cout << x << "\n"; } template<typename Head, typename... Tail> void print(const Head &head, Tail... tail) { std::cout << head << " "; print(tail...); } struct Input { template<typename T> operator T() const { T x; std::cin >> x; return x; } } in; #ifdef MY_DEBUG #include "debug_dump.hpp" #else #define DUMP(...) #endif using namespace std; template<typename CapType, typename CostType> class MinCostFlowDAG { public: using Cat = CapType; using Cot = CostType; using pti = pair<Cot, int>; struct edge { int to, rev; Cat cap; Cot cost; }; const int V; const Cot inf; vector<vector<edge> > G; vector<Cot> h, dist; vector<int> deg, ord, prevv, preve; MinCostFlowDAG(const int node_size) : V(node_size), inf(numeric_limits<Cot>::max()), G(V), h(V, inf), dist(V), deg(V, 0), prevv(V), preve(V) {} void add_edge(const int from, const int to, const Cat cap, const Cot cost) { if (cap == 0) return; G[from].push_back((edge) {to, (int) G[to].size(), cap, cost}); G[to].push_back((edge) {from, (int) G[from].size() - 1, 0, -cost}); ++deg[to]; } bool tsort() { queue<int> que; for (int i = 0; i < V; ++i) { if (deg[i] == 0) que.push(i); } while (!que.empty()) { const int p = que.front(); que.pop(); ord.push_back(p); for (auto &e: G[p]) { if (e.cap > 0 && --deg[e.to] == 0) que.push(e.to); } } return (*max_element(deg.begin(), deg.end()) == 0); } void calc_potential(const int s) { h[s] = 0; for (const int v: ord) { if (h[v] == inf) continue; for (const edge &e: G[v]) { if (e.cap > 0) h[e.to] = min(h[e.to], h[v] + e.cost); } } } void Dijkstra(const int s) { priority_queue<pti, vector<pti>, greater<pti> > que; fill(dist.begin(), dist.end(), inf); dist[s] = 0; que.push(pti(0, s)); while (!que.empty()) { pti p = que.top(); que.pop(); const int v = p.second; if (dist[v] < p.first) continue; for (int i = 0; i < (int) G[v].size(); ++i) { edge &e = G[v][i]; if (e.cap > 0 && dist[e.to] > dist[v] + e.cost + h[v] - h[e.to]) { dist[e.to] = dist[v] + e.cost + h[v] - h[e.to]; prevv[e.to] = v, preve[e.to] = i; que.push(pti(dist[e.to], e.to)); } } } } void update(const int s, const int t, Cat &f, Cot &res) { for (int i = 0; i < V; i++) { if (dist[i] != inf) h[i] += dist[i]; } Cat d = f; for (int v = t; v != s; v = prevv[v]) { d = min(d, G[prevv[v]][preve[v]].cap); } f -= d; res += h[t] * d; for (int v = t; v != s; v = prevv[v]) { edge &e = G[prevv[v]][preve[v]]; e.cap -= d; G[v][e.rev].cap += d; } } Cot solve(const int s, const int t, Cat f) { if (!tsort()) assert(false); // not DAG calc_potential(s); Cot res = 0; while (f > 0) { Dijkstra(s); if (dist[t] == inf) return -inf; update(s, t, f, res); } return res; } }; auto solve() { const int n = in, K = in; vector<i64> a(n); i64 offset = 0; vector<tuple<i64, int, int>> edges; MinCostFlowDAG<int, i64> g(n); REP(i, n) { a[i] = in; int m = in; REP(j, m) { int b = in; --b; i64 cost = a[b] - a[i]; if (cost < 0) { g.add_edge(b, i, 1, cost); } } } REP(i, n - 1) { g.add_edge(i, i + 1, K, 0); } return -g.solve(0, n - 1, K); } int main() { ios_base::sync_with_stdio(false), cin.tie(nullptr); auto ans = solve(); print(ans); }