結果
問題 | No.408 五輪ピック |
ユーザー | sntea |
提出日時 | 2016-08-06 00:05:01 |
言語 | C++11 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 1,849 ms / 5,000 ms |
コード長 | 4,215 bytes |
コンパイル時間 | 2,028 ms |
コンパイル使用メモリ | 188,008 KB |
実行使用メモリ | 6,144 KB |
最終ジャッジ日時 | 2024-11-07 04:56:33 |
合計ジャッジ時間 | 6,940 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 | 1 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 12 ms
5,248 KB |
testcase_06 | AC | 12 ms
5,248 KB |
testcase_07 | AC | 19 ms
5,248 KB |
testcase_08 | AC | 10 ms
5,248 KB |
testcase_09 | AC | 11 ms
5,248 KB |
testcase_10 | AC | 13 ms
5,248 KB |
testcase_11 | AC | 13 ms
5,248 KB |
testcase_12 | AC | 20 ms
5,248 KB |
testcase_13 | AC | 12 ms
5,248 KB |
testcase_14 | AC | 5 ms
5,248 KB |
testcase_15 | AC | 12 ms
5,248 KB |
testcase_16 | AC | 14 ms
5,248 KB |
testcase_17 | AC | 15 ms
5,248 KB |
testcase_18 | AC | 16 ms
5,248 KB |
testcase_19 | AC | 19 ms
5,248 KB |
testcase_20 | AC | 6 ms
5,248 KB |
testcase_21 | AC | 4 ms
5,248 KB |
testcase_22 | AC | 9 ms
5,248 KB |
testcase_23 | AC | 21 ms
6,144 KB |
testcase_24 | AC | 16 ms
5,632 KB |
testcase_25 | AC | 142 ms
5,248 KB |
testcase_26 | AC | 25 ms
5,504 KB |
testcase_27 | AC | 743 ms
5,248 KB |
testcase_28 | AC | 561 ms
5,248 KB |
testcase_29 | AC | 1,849 ms
5,248 KB |
testcase_30 | AC | 2 ms
5,248 KB |
testcase_31 | AC | 2 ms
5,248 KB |
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 int main() { ios_init(); int n,m; cin >> n >> m; vector<P> edge(m); Graph g(n); REP(i,m){ int a,b; cin >> a >> b; a--; b--; edge[i] = P(a,b); g.add_edge(a,b,1); g.add_edge(b,a,1); } unordered_set<int> s; RBP(e,g[0]){ s.insert(e.to); } //pite(ALL(s)); string ans = "NO"; REP(i,m){ int a = edge[i].F, b = edge[i].S; if(a == 0 or b == 0) continue; DEBUG(a); DEBUG(b); unordered_set<int> as; RBP(e,g[a]){ if(e.to != b and s.count(e.to)){ as.insert(e.to); } } //pite(ALL(as)); if(SZ(as) == 0) continue; RBP(e,g[b]){ DEBUG(e.to); if(e.to != a and s.count(e.to) and !(as.count(e.to) and SZ(as) == 1)){ DEBUG(a); DEBUG(b); DEBUG(e.to);// pite(ALL(as)); ans = "YES"; break; } } if(ans == "YES") break; //cout << endl; } cout << ans << endl; return 0; }