結果
問題 | No.408 五輪ピック |
ユーザー | sntea |
提出日時 | 2016-08-05 23:10:06 |
言語 | C++11 (gcc 11.4.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,057 bytes |
コンパイル時間 | 1,999 ms |
コンパイル使用メモリ | 181,404 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-11-07 01:10:31 |
合計ジャッジ時間 | 8,824 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
(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 | WA | - |
testcase_01 | WA | - |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | OLE | - |
testcase_06 | -- | - |
testcase_07 | -- | - |
testcase_08 | -- | - |
testcase_09 | -- | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
ソースコード
#ifdef LOCAL111 #else #define NDEBUG #endif #include <bits/stdc++.h> const int INF = 1e8; 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 #else #define DEBUG(x) true #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 pair<int,int> P; typedef long long int LL; typedef unsigned long long ULL; 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 int 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; } //liblary bool dfs(const Graph &g,int n,vector<int> &v, int p){ pite(ALL(v)); DEBUG(n); DEBUG(p); if(n == 0){ v.push_back(p); RBP(e,g[p]){ if(e.to == 0) return true; } v.pop_back(); return false; }else{ n--; v.push_back(p); bool res = false; RBP(e,g[p]){ bool ff = true; REP(i,SZ(v)) if(e.to == v[i]){ ff = false; } if(ff) res |= dfs(g,n,v,e.to); } v.pop_back(); return res; } } int main() { ios_init(); int n,m; cin >> n >> m; Graph g(n); REP(i,m){ int a,b; cin >> a >> b; a--; b--; g.add_edge(a,b,1); g.add_edge(b,a,1); } std::vector<int> v; bool res = dfs(g,4,v,0); cout << (res?"YES":"NO") << endl; return 0; }