結果
問題 | No.2604 Initial Motion |
ユーザー |
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提出日時 | 2024-01-12 22:01:12 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 863 ms / 3,000 ms |
コード長 | 4,909 bytes |
コンパイル時間 | 2,397 ms |
コンパイル使用メモリ | 213,080 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-09-27 22:13:06 |
合計ジャッジ時間 | 17,988 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 39 |
ソースコード
#pragma GCC optimize("O2")#include <algorithm>#include <array>#include <bit>#include <bitset>#include <cassert>#include <cctype>#include <cfenv>#include <cfloat>#include <chrono>#include <cinttypes>#include <climits>#include <cmath>#include <compare>#include <complex>#include <concepts>#include <cstdarg>#include <cstddef>#include <cstdint>#include <cstdio>#include <cstdlib>#include <cstring>#include <deque>#include <fstream>#include <functional>#include <initializer_list>#include <iomanip>#include <ios>#include <iostream>#include <istream>#include <iterator>#include <limits>#include <list>#include <map>#include <memory>#include <new>#include <numbers>#include <numeric>#include <ostream>#include <queue>#include <random>#include <ranges>#include <set>#include <span>#include <sstream>#include <stack>#include <streambuf>#include <string>#include <tuple>#include <type_traits>#include <variant>#define int ll#define INT128_MAX (__int128)(((unsigned __int128) 1 << ((sizeof(__int128) * __CHAR_BIT__) - 1)) - 1)#define INT128_MIN (-INT128_MAX - 1)#ifdef DEBUG#define dbg(x) cout << (#x) << " = " << x << '\n'#else#define dbg(x)#endifnamespace R = std::ranges;namespace V = std::views;using namespace std;using ll = long long;using ull = unsigned long long;using ldb = long double;using pii = pair<int, int>;using pll = pair<long long, long long>;//#define double ldbtemplate<class T, size_t N>ostream& operator<<(ostream& os, const array<T, N> &arr) {for(const T &X : arr)os << X << ' ';return os;}template<class T>ostream& operator<<(ostream& os, const vector<T> &vec) {for(const T &X : vec)os << X << ' ';return os;}template<class T>ostream& operator<<(ostream& os, const set<T> &s) {for(const T &x : s)os << x << ' ';return os;}/*** template name: MCMF* author: Misuki* last update: 2021/11/11*/struct MCMF {struct Edge {int to, rev;long long cap, cos;Edge(int _to, long long _cap, long long _cos, int _rev) :to(_to), cap(_cap), cos(_cos), rev(_rev) {}};static const int SIZE = 2002;int n, s, t;vector<Edge> G[SIZE];array<int, SIZE> par, idx;array<long long, SIZE> pot, dis, f;void init(int _n, int _s, int _t) {n = _n, s = _s, t = _t;for(int i = 0; i < n; i++)G[i].clear();}void addEdge(int from, int to, long long cap, long long cos) {G[from].emplace_back(Edge(to, cap, cos, G[to].size()));G[to].emplace_back(Edge(from, 0, -cos, (int)G[from].size() - 1));}void initPotential() {fill(dis.begin(), dis.end(), LLONG_MAX);dis[s] = 0;for(int i = 1; i < n; i++) {for(int j = 0; j < n; j++) {if (dis[j] == LLONG_MAX)continue;for(Edge E : G[j]) {if (E.cap == 0)continue;if (dis[j] + E.cos < dis[E.to])dis[E.to] = dis[j] + E.cos;}}}pot.swap(dis);}pll flow() {long long Cost = 0, Flow = 0;while(true) {priority_queue<pii, vector<pii>, greater<pii> > pq;fill(dis.begin(), dis.end(), LLONG_MAX);dis[s] = 0, f[s] = LLONG_MAX;pq.push(make_pair(0, s));while(!pq.empty()) {pii now = pq.top(); pq.pop();if (dis[now.second] != now.first)continue;int V = now.second;for(Edge E : G[V]) {if (E.cap == 0)continue;if (dis[V] + E.cos + pot[V] - pot[E.to] < dis[E.to]) {dis[E.to] = dis[V] + E.cos + pot[V] - pot[E.to];f[E.to] = min(f[V], E.cap);par[E.to] = V;idx[E.to] = G[E.to][E.rev].rev;pq.push(make_pair(dis[E.to], E.to));}}}if (dis[t] == LLONG_MAX)break;long long bot = f[t];int now = t;while(now != s) {Edge &E = G[par[now]][idx[now]];E.cap -= bot;G[now][E.rev].cap += bot;now = par[now];}Flow += bot, Cost += bot * (dis[t] - pot[s] + pot[t]);for(int i = 0; i < n; i++) {dis[i] += pot[i] - pot[s];}pot.swap(dis);}return make_pair(Flow, Cost);}};signed main() {ios::sync_with_stdio(false), cin.tie(NULL);int k, n, m; cin >> k >> n >> m;vector<int> a(k), b(n);for(int &x : a) {cin >> x;x--;}for(int &x : b)cin >> x;vector<array<int, 3>> e(m);for(auto &[u, v, w] : e) {cin >> u >> v >> w;u--, v--;}const int S = n, T = n + 1;MCMF flow;flow.init(n + 2, S, T);for(auto [u, v, w] : e) {flow.addEdge(u, v, INT_MAX, w);flow.addEdge(v, u, INT_MAX, w);}for(int x : a)flow.addEdge(S, x, 1, 0);for(int i = 0; i < n; i++)flow.addEdge(i, T, b[i], 0);flow.initPotential();cout << flow.flow().second << '\n';return 0;}