結果
問題 | No.1308 ジャンプビーコン |
ユーザー | minato |
提出日時 | 2020-12-05 11:49:35 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 5,410 bytes |
コンパイル時間 | 4,184 ms |
コンパイル使用メモリ | 250,224 KB |
実行使用メモリ | 74,112 KB |
最終ジャッジ日時 | 2024-09-15 16:53:40 |
合計ジャッジ時間 | 23,376 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge6 |
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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
13,888 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 3 ms
6,944 KB |
testcase_09 | AC | 4 ms
6,944 KB |
testcase_10 | AC | 3 ms
6,944 KB |
testcase_11 | AC | 3 ms
6,944 KB |
testcase_12 | AC | 3 ms
6,940 KB |
testcase_13 | AC | 70 ms
6,940 KB |
testcase_14 | AC | 68 ms
6,940 KB |
testcase_15 | AC | 71 ms
6,944 KB |
testcase_16 | AC | 70 ms
6,940 KB |
testcase_17 | AC | 67 ms
6,944 KB |
testcase_18 | AC | 1,693 ms
74,112 KB |
testcase_19 | AC | 1,712 ms
74,112 KB |
testcase_20 | AC | 1,787 ms
74,112 KB |
testcase_21 | AC | 1,719 ms
74,112 KB |
testcase_22 | AC | 1,644 ms
74,112 KB |
testcase_23 | AC | 2 ms
6,940 KB |
testcase_24 | AC | 2 ms
6,940 KB |
testcase_25 | AC | 2 ms
6,940 KB |
testcase_26 | AC | 1,346 ms
73,856 KB |
testcase_27 | AC | 1,337 ms
73,984 KB |
testcase_28 | AC | 1,350 ms
73,984 KB |
testcase_29 | TLE | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
testcase_38 | -- | - |
testcase_39 | -- | - |
ソースコード
#pragma GCC target("avx2,avx") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #include <bits/stdc++.h> using namespace std; using ll = long long; using ull = unsigned long long; using i128 = __int128_t; using pii = pair<int, int>; using pll = pair<long long, long long>; #define rep(i, n) for (int i = 0; i < (n); i++) #define rrep(i, n) for (int i = int(n) - 1; i >= 0; i--) #define all(x) (x).begin(), (x).end() constexpr char ln = '\n'; istream& operator>>(istream& is, __int128_t& x) { x = 0; string s; is >> s; int n = int(s.size()), it = 0; if (s[0] == '-') it++; for (; it < n; it++) x = (x * 10 + s[it] - '0'); if (s[0] == '-') x = -x; return is; } ostream& operator<<(ostream& os, __int128_t x) { if (x == 0) return os << 0; if (x < 0) os << '-', x = -x; deque<int> deq; while (x) deq.emplace_front(x % 10), x /= 10; for (int e : deq) os << e; return os; } template<class T1, class T2> ostream& operator<<(ostream& os, const pair<T1, T2>& p) { return os << "(" << p.first << ", " << p.second << ")"; } template<class T> ostream& operator<<(ostream& os, const vector<T>& v) { os << "{"; for (int i = 0; i < int(v.size()); i++) { if (i) os << ", "; os << v[i]; } return os << "}"; } template<class Container> inline int SZ(Container& v) { return int(v.size()); } template<class T> inline void UNIQUE(vector<T>& v) { v.erase(unique(v.begin(), v.end()), v.end()); } template<class T1, class T2> inline bool chmax(T1& a, T2 b) { if (a < b) {a = b; return true ;} return false ;} template<class T1, class T2> inline bool chmin(T1& a, T2 b) { if (a > b) {a = b; return true ;} return false ;} inline int topbit(ull x) { return x == 0 ? -1 : 63 - __builtin_clzll(x); } inline int botbit(ull x) { return x == 0 ? 64 : __builtin_ctzll(x); } inline int popcount(ull x) { return __builtin_popcountll(x); } inline int kthbit(ull x, int k) { return (x>>k) & 1; } inline constexpr long long TEN(int x) { return x == 0 ? 1 : TEN(x-1) * 10; } inline void print() { cout << "\n"; } template<class T> inline void print(const vector<T>& v) { for (int i = 0; i < int(v.size()); i++) { if (i) cout << " "; cout << v[i]; } print(); } template<class T, class... Args> inline void print(const T& x, const Args& ... args) { cout << x << " "; print(args...); } #ifdef MINATO_LOCAL inline void debug_out() { cerr << endl; } template <class T, class... Args> inline void debug_out(const T& x, const Args& ... args) { cerr << " " << x; debug_out(args...); } #define debug(...) cerr << __LINE__ << " : [" << #__VA_ARGS__ << "] =", debug_out(__VA_ARGS__) #define dump(x) cerr << __LINE__ << " : " << #x << " = " << (x) << endl #else #define debug(...) (void(0)) #define dump(x) (void(0)) #endif struct fast_ios { fast_ios() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_; //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// template<typename T> struct edge { int src,to; T cost; int id; edge(){} edge(int to, T cost) : src(-1), to(to), cost(cost), id(-1) {} edge(int src, int to, T cost) : src(src), to(to), cost(cost), id(-1) {} edge(int src, int to, T cost, int id) : src(src), to(to), cost(cost), id(id) {} bool operator<(const edge &e) const {return cost < e.cost;} }; constexpr ll INF = 1e18; int main() { ll N,Q,C; cin >> N >> Q >> C; vector<vector<edge<ll>>> G(N); rep(i,N-1) { int u,v,w; cin >> u >> v >> w; u--; v--; G[u].emplace_back(v,w); G[v].emplace_back(u,w); } vector<int> x(Q); rep(i,Q) cin >> x[i], x[i]--; vector<vector<ll>> dist(N, vector<ll>(N,-1)); queue<int> que; rep(i,N) { dist[i][i] = 0; que.emplace(i); while (!que.empty()) { int v = que.front(); que.pop(); for (auto& e : G[v]) { if (~dist[i][e.to]) continue; dist[i][e.to] = dist[i][v]+e.cost; que.emplace(e.to); } } } vector<ll> dp(N,INF); dp[x[0]] = 0; rep(k,Q-1) { vector<pll> arr(N); rep(i,N) { if (i==x[k]) arr[i] = pll(dp[i]+dist[i][x[k+1]],i); else arr[i] = pll(dp[i]+dist[i][x[k+1]]+C,i); } sort(all(arr)); vector<bool> seen(N); vector<ll> nex(N); rep(i,N) nex[i] = dp[i]+dist[x[k]][x[k+1]]; chmin(nex[x[k+1]],arr[0].first); seen[x[k+1]] = 1; auto getpath=[&](int s) { vector<int> ret; auto dfs=[&](auto self, int v, int pv)->bool { if (seen[v]) return true; ret.emplace_back(v); for (auto& e : G[v]) { if (e.to==pv) continue; if (self(self,e.to,v)) return true; } ret.pop_back(); return false; }; dfs(dfs,s,-1); return ret; }; rep(i,N) { auto[val,s] = arr[i]; auto path = getpath(s); for (auto e : path) { chmin(nex[e],val); seen[e] = 1; } } swap(dp,nex); } cout << *min_element(all(dp)) << ln; }