結果

問題 No.2604 Initial Motion
ユーザー pitP
提出日時 2024-01-12 22:14:22
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
TLE  
実行時間 -
コード長 3,004 bytes
コンパイル時間 4,930 ms
コンパイル使用メモリ 277,536 KB
最終ジャッジ日時 2025-02-18 18:27:48
ジャッジサーバーID
(参考情報)
judge1 / judge2
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 10 TLE * 1 -- * 28
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#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
int main(){
cin.tie(0);
ios_base::sync_with_stdio(false);
int K, N, M; cin >> K >> N >> M;
vector<int> A(K);
rep(i,K) cin >> A[i];
vector<int> B(N);
rep(i,N) cin >> B[i];
using Edge = pair<ll, int>;
vector<vector<Edge>> g(N);
rep(i,M){
int U, V; cin >> U >> V;
ll D; cin >> D;
g[U - 1].push_back(Edge{D, V - 1});
g[V - 1].push_back(Edge{D, U - 1});
}
auto dijkstra = [&](int st){
vector<ll> dist(N,LINF);
dist[st] = 0ll;
priority_queue<Edge,vector<Edge>,greater<Edge>> pq;
pq.push(make_pair(dist[st], st));
while(!pq.empty()){
int now;
ll time;
tie(time, now) = pq.top(); pq.pop();
if(dist[now] != time)continue;
for(auto [cost, nxt] : g[now]){
if(time + cost < dist[nxt]){
dist[nxt] = time + cost;
pq.push(make_pair(dist[nxt], nxt));
}
}
}
return dist;
};
vector<vector<ll>> dist(N);
rep(i,N)dist[i] = dijkstra(i);
int st = K + N, en = K + N + 1;
mcf_graph<int,ll> mg(K + N + 2);
rep(i,K) mg.add_edge(st, i, 1, 0ll);
rep(j,N) mg.add_edge(j + K, en, B[j], 0ll);
rep(i,K)rep(j,N) mg.add_edge(i, j + K, 1, dist[A[i] - 1][j]);
auto res = mg.flow(st, en, K);
cout << res.second << endl;
}
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