結果
問題 | No.417 チューリップバブル |
ユーザー | sntea |
提出日時 | 2016-08-31 06:32:55 |
言語 | C++11 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 459 ms / 2,000 ms |
コード長 | 5,165 bytes |
コンパイル時間 | 2,813 ms |
コンパイル使用メモリ | 190,636 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-11-14 12:44:18 |
合計ジャッジ時間 | 8,773 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
(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
6,816 KB |
testcase_01 | AC | 2 ms
6,820 KB |
testcase_02 | AC | 2 ms
6,816 KB |
testcase_03 | AC | 2 ms
6,820 KB |
testcase_04 | AC | 1 ms
6,820 KB |
testcase_05 | AC | 2 ms
6,816 KB |
testcase_06 | AC | 1 ms
6,820 KB |
testcase_07 | AC | 2 ms
6,816 KB |
testcase_08 | AC | 6 ms
6,816 KB |
testcase_09 | AC | 13 ms
6,816 KB |
testcase_10 | AC | 16 ms
6,816 KB |
testcase_11 | AC | 68 ms
6,816 KB |
testcase_12 | AC | 67 ms
6,820 KB |
testcase_13 | AC | 26 ms
6,820 KB |
testcase_14 | AC | 108 ms
6,816 KB |
testcase_15 | AC | 8 ms
6,820 KB |
testcase_16 | AC | 9 ms
6,816 KB |
testcase_17 | AC | 58 ms
6,820 KB |
testcase_18 | AC | 58 ms
6,816 KB |
testcase_19 | AC | 58 ms
6,816 KB |
testcase_20 | AC | 225 ms
6,816 KB |
testcase_21 | AC | 223 ms
6,816 KB |
testcase_22 | AC | 223 ms
6,820 KB |
testcase_23 | AC | 224 ms
6,816 KB |
testcase_24 | AC | 2 ms
6,816 KB |
testcase_25 | AC | 222 ms
6,820 KB |
testcase_26 | AC | 21 ms
6,816 KB |
testcase_27 | AC | 155 ms
6,816 KB |
testcase_28 | AC | 222 ms
6,816 KB |
testcase_29 | AC | 220 ms
6,816 KB |
testcase_30 | AC | 221 ms
6,820 KB |
testcase_31 | AC | 221 ms
6,816 KB |
testcase_32 | AC | 1 ms
6,820 KB |
testcase_33 | AC | 7 ms
6,816 KB |
testcase_34 | AC | 45 ms
6,820 KB |
testcase_35 | AC | 447 ms
6,820 KB |
testcase_36 | AC | 446 ms
6,816 KB |
testcase_37 | AC | 449 ms
6,816 KB |
testcase_38 | AC | 459 ms
6,816 KB |
testcase_39 | AC | 459 ms
6,820 KB |
ソースコード
#ifdef LOCAL111 #else #define NDEBUG #endif #include <bits/stdc++.h> const long long INF = 1e12; using namespace std; #define endl '\n' #define ALL(a) (a).begin(),(a).end() #define SZ(a) int((a).size()) #define FOR(i,a,b) for(int i=(a);i<(b);++i) #define RFOR(i,a,b) for (int i=(b)-1;i>=(a);i--) #define REP(i,n) FOR(i,0,n) #define RREP(i,n) for (int i=(n)-1;i>=0;i--) #define RBP(i,a) for(auto& i : a) #ifdef LOCAL111 #define DEBUG(x) cout<<#x<<": "<<(x)<<endl template<typename T> void dpite(T a, T b){ for(T ite = a; ite != b; ite++) cout << (ite == a ? "" : " ") << *ite; cout << endl;} #else #define DEBUG(x) true template<typename T> void dpite(T a, T b){ return; } #endif #define F first #define S second #define SNP string::npos #define WRC(hoge) cout << "Case #" << (hoge)+1 << ": " #define rangej(a,b,c) ((a) <= (c) and (c) < (b)) #define rrangej(b,c) rangej(0,b,c) template<typename T> void pite(T a, T b){ for(T ite = a; ite != b; ite++) cout << (ite == a ? "" : " ") << *ite; cout << endl;} template<typename T> bool chmax(T& a, T b){if(a < b){a = b; return true;} return false;} template<typename T> bool chmin(T& a, T b){if(a > b){a = b; return true;} return false;} typedef long long int LL; typedef unsigned long long ULL; typedef pair<int,int> P; typedef pair<LL,LL> LP; void ios_init(){ //cout.setf(ios::fixed); //cout.precision(12); #ifdef LOCAL111 return; #endif ios::sync_with_stdio(false); cin.tie(0); } //library typedef long long cost_t; class Edge { public: int to; cost_t cost; Edge(){ } Edge(int x,cost_t y){ to = x; cost = y; } bool operator< (const Edge& x) const { return cost < x.cost; } bool operator> (const Edge& x) const { return cost > x.cost; } }; class Graph { private: //const long long int INF = (long long)1e18; vector<vector<Edge> > v; int n; public: Graph(int x){ n = x; v = vector<vector<Edge> >(x); } vector<Edge>& operator[](int x){ return v[x]; } const vector<Edge>& operator[](int x) const { return v[x]; } int size() const { return n; } void add_edge(int from, Edge e){ v[from].push_back(e); } void add_edge(int from, int to, cost_t cost){ add_edge(from,Edge(to,cost)); } }; vector<cost_t> dijkstra(int from, const Graph& v) { vector<cost_t> dist(v.size(),INF); priority_queue<Edge,vector<Edge>,greater<Edge>> que; que.push(Edge(from,0)); while(!que.empty()){ Edge e = que.top(); que.pop(); if(dist[e.to] == INF){ dist[e.to] = e.cost; for(auto to : v[e.to]){ if(dist[to.to] == INF) que.push(Edge(to.to, e.cost+to.cost)); } } } return dist; } vector<cost_t> bellmanford(int from, const Graph& g){ vector<cost_t> res(g.size(),INF); res[from] = 0; bool conf = true; int cnt = 0; while(conf){ conf = false; for(int i = 0; i < g.size(); i++){ if(res[i] != INF) for(const auto& e : g[i]){ if(res[e.to] > res[i]+e.cost){ conf = true; res[e.to] = res[i]+e.cost; } } } if(cnt > g.size()+5) return vector<cost_t>(); cnt++; } return res; } Graph prim(const Graph g){ using T = tuple<cost_t, int, int>; priority_queue<T, vector<T>, greater<T>> qu; int n = g.size(); assert(n != 0); vector<bool> added(n,false); qu.emplace(0,0,0); Graph res(n); while(!qu.empty()){ int from, to; cost_t cost; tie(cost, from, to) = qu.top(); qu.pop(); if(!added[to]){ added[to] = true; res.add_edge(from, to, cost); res.add_edge(to, from, cost); for(const auto &e : g[to]){ if(!added[e.to]){ qu.emplace(e.cost, to, e.to); } } } } return res; } vector<int> tree_getorder(const Graph &g, int root){ vector<int> res; function<void(int p, int pre)> func = [&](int p, int pre){ for(auto &e : g[p]){ if(e.to != pre){ func(e.to,p); } } res.push_back(p); }; func(root,-1); return res; } vector<int> tree_getpar(const Graph &g, int root){ vector<int> par(g.size(),root); function<void(int p, int pre)> func = [&](int p, int pre){ par[p] = pre; for(auto &e : g[p]){ if(e.to != pre){ func(e.to,p); } } }; func(root,root); return par; } //liblary // int dfs(const vector<vector<int>> &memo, const Graph &g, int p, int pre, int time){ // int res = INF; // if(memo[p][time] != -1) return res; // vector<P> vv; // RBP(e,g[p]){ // if(e.to != pre){ // dfs(memo,g,e.to,p,time); // } // } // } int main() { ios_init(); int n,m; cin >> n >> m; vector<int> u(n); REP(i,n) cin >> u[i]; Graph g(n); REP(i,n-1){ int a,b,c; cin >> a >> b >> c; g.add_edge(a,b,c); g.add_edge(b,a,c); } vector<vector<LL>> dp(n,vector<LL>(m+1,-INF)); // dpite(ALL(tree_getorder(g,0))); auto topo = tree_getorder(g,0); auto par = tree_getpar(g,0); dpite(ALL(par)); REP(i,SZ(topo)){ int p = topo[i]; dp[p][0] = u[p]; RBP(e,g[p]) if(e.to != par[p]){ vector<LL> tmp = dp[p]; RFOR(j,0,m+1){ FOR(k,j+2*e.cost,m+1){ tmp[k] = max(tmp[k], dp[p][k-(j+2*e.cost)]+dp[e.to][j]); } } if(p == 4){ DEBUG(e.to); dpite(ALL(dp[p])); dpite(ALL(tmp)); } dp[p] = tmp; } } DEBUG(endl); REP(i,n) dpite(ALL(dp[i])); cout << *max_element(ALL(dp[0])) << endl; return 0; }