結果
問題 | No.2072 Anatomy |
ユーザー | eQe |
提出日時 | 2024-11-27 15:51:33 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,667 bytes |
コンパイル時間 | 5,149 ms |
コンパイル使用メモリ | 325,052 KB |
実行使用メモリ | 45,144 KB |
最終ジャッジ日時 | 2024-11-27 15:51:44 |
合計ジャッジ時間 | 9,737 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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
6,820 KB |
testcase_01 | AC | 1 ms
6,816 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 | 2 ms
6,820 KB |
testcase_07 | AC | 2 ms
6,816 KB |
testcase_08 | WA | - |
testcase_09 | AC | 127 ms
41,592 KB |
testcase_10 | AC | 146 ms
41,612 KB |
testcase_11 | WA | - |
testcase_12 | AC | 104 ms
36,080 KB |
testcase_13 | WA | - |
testcase_14 | AC | 102 ms
28,612 KB |
testcase_15 | AC | 70 ms
25,776 KB |
testcase_16 | WA | - |
testcase_17 | AC | 161 ms
42,996 KB |
testcase_18 | AC | 61 ms
24,000 KB |
testcase_19 | AC | 160 ms
44,824 KB |
testcase_20 | WA | - |
testcase_21 | AC | 128 ms
43,128 KB |
testcase_22 | WA | - |
testcase_23 | AC | 149 ms
43,132 KB |
testcase_24 | AC | 131 ms
43,128 KB |
testcase_25 | WA | - |
testcase_26 | AC | 2 ms
6,820 KB |
testcase_27 | AC | 147 ms
43,260 KB |
testcase_28 | AC | 112 ms
44,652 KB |
ソースコード
#include<bits/stdc++.h> #include<atcoder/all> using namespace std; namespace my{ #define eb emplace_back #define LL(...) ll __VA_ARGS__;lin(__VA_ARGS__) #define FO(n) for(ll ij=n;ij--;) #define FOR(i,...) for(auto[i,i##stop,i##step]=range(0,__VA_ARGS__);i<i##stop;i+=i##step) #define fo(i,...) FO##__VA_OPT__(R)(i __VA_OPT__(,__VA_ARGS__)) #define fe(a,i,...) for(auto&&__VA_OPT__([)i __VA_OPT__(,__VA_ARGS__]):a) #define single_testcase void solve();}int main(){my::io();my::solve();}namespace my{ void io(){cin.tie(nullptr)->sync_with_stdio(0);cout<<fixed<<setprecision(15);} using ll=long long; template<class...A>constexpr auto range(bool s,A...a){array<ll,3>r{0,0,1};ll I=0;((r[I++]=a),...);if(!s&&I==1)swap(r[0],r[1]);r[0]-=s;return r;} constexpr char nl=10; constexpr char sp=32; bool amax(auto&a,const auto&b){return a<b?a=b,1:0;} auto max(const auto&...a){return max(initializer_list<common_type_t<decltype(a)...>>{a...});} template<class A,class B>struct pair{ A a;B b; pair()=default; pair(A a,B b):a(a),b(b){} pair(const std::pair<A,B>&p):a(p.first),b(p.second){} auto operator<=>(const pair&)const=default; friend ostream&operator<<(ostream&o,const pair&p){return o<<p.a<<sp<<p.b;} }; template<class F=less<>>auto&sort(auto&a,const F&f={}){ranges::sort(a,f);return a;} template<class T,class U>ostream&operator<<(ostream&o,const std::pair<T,U>&p){return o<<p.first<<sp<<p.second;} template<class V>concept vectorial=is_base_of_v<vector<typename V::value_type>,V>; template<class T>struct vec_attr{using core_type=T;static constexpr int d=0;}; template<vectorial V>struct vec_attr<V>{using core_type=typename vec_attr<typename V::value_type>::core_type;static constexpr int d=vec_attr<typename V::value_type>::d+1;}; template<class T>using core_t=vec_attr<T>::core_type; template<class V>istream&operator>>(istream&i,vector<V>&v){fe(v,e)i>>e;return i;} template<class V>ostream&operator<<(ostream&o,const vector<V>&v){fe(v,e)o<<e<<string(&e!=&v.back(),vectorial<V>?nl:sp);return o;} template<class V>struct vec:vector<V>{ using vector<V>::vector; vec(const vector<V>&v){vector<V>::operator=(v);} vec&operator^=(const vec&u){this->insert(this->end(),u.begin(),u.end());return*this;} vec operator^(const vec&u)const{return vec{*this}^=u;} vec&operator++(){fe(*this,e)++e;return*this;} vec&operator--(){fe(*this,e)--e;return*this;} vec operator-()const{vec v=*this;fe(v,e)e=-e;return v;} auto scan(const auto&f)const{pair<core_t<V>,bool>r{};fe(*this,e)if constexpr(!vectorial<V>)r.b?f(r.a,e),r:r={e,1};else if(auto s=e.scan(f);s.b)r.b?f(r.a,s.a),r:r=s;return r;} auto max()const{return scan([](auto&a,const auto&b){a<b?a=b:0;}).a;} }; void lin(auto&...a){(cin>>...>>a);} template<char c=sp>void pp(const auto&...a){ll n=sizeof...(a);((cout<<a<<string(--n>0,c)),...);cout<<nl;} void dec(auto&...a){((--a),...);} struct dsu{ ll n; vec<ll>d; dsu(ll n):n(n),d(n,-1){} ll leader(ll a){ assert(0<=a&&a<n); if(d[a]<0)return a; return d[a]=leader(d[a]); } ll size(ll a){ return-d[leader(a)]; } ll merge(ll a,ll b){ ll x=leader(a),y=leader(b); if(x==y)return x; if(-d[x]<-d[y])swap(x,y); d[x]+=d[y],d[y]=x; return x; } }; template<class WT>struct edge{ ll from,to; WT wt; ll id; edge()=default; edge(ll from,ll to,WT wt=1,ll id=-1):from(from),to(to),wt(wt),id(id){} auto operator<=>(const edge&e)const{return wt<=>e.wt;} friend ostream&operator<<(ostream&o,const edge&e){return o<<"(to "<<e.to<<", wt "<<e.wt<<")";} }; template<class WT>struct graph{ vec<vec<edge<WT>>>edges; graph()=default; graph(ll n):edges(n){} decltype(auto)operator[](ll i){return edges[i];} decltype(auto)operator[](ll i)const{return edges[i];} ll size()const{return edges.size();} friend ostream&operator<<(ostream&o,const graph&g){ fo(u,g.size()){ o<<"from "<<u<<": "; fo(j,g[u].size())o<<g[u][j]<<string(j!=g[u].size()-1,sp); o<<nl; } return o; } template<class...A>void add_edge(ll a,A&&...b){edges[a].eb(a,std::forward<A>(b)...);} void add_edge(const edge<WT>&e){edges[e.from].eb(e);} vec<edge<WT>>get_edges()const{ vec<edge<WT>>res; fo(u,size())fe(edges[u],e)res.eb(e); return res; } }; single_testcase void solve(){ LL(N,M); graph<ll>G(N); fo(i,M){ LL(a,b);dec(a,b); G.add_edge(a,b,1,i); G.add_edge(b,a,1,i); } dsu uf(N); vec<ll>dp(N); auto es=G.get_edges(); sort(es,[&](auto&a,auto&b){return a.id>b.id;}); fe(es,e){ if(e.from>e.to)continue; ll nl=uf.merge(e.from,e.to); amax(dp[nl],max(dp[uf.leader(e.from)],dp[uf.leader(e.to)])+1); } pp(dp.max()); }}