結果
問題 | No.1605 Matrix Shape |
ユーザー | hotman78 |
提出日時 | 2021-07-16 23:17:46 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 1,155 ms / 2,000 ms |
コード長 | 5,261 bytes |
コンパイル時間 | 3,616 ms |
コンパイル使用メモリ | 250,332 KB |
実行使用メモリ | 94,592 KB |
最終ジャッジ日時 | 2024-07-06 10:51:34 |
合計ジャッジ時間 | 17,116 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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
6,812 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,940 KB |
testcase_10 | AC | 2 ms
6,944 KB |
testcase_11 | AC | 2 ms
6,944 KB |
testcase_12 | AC | 2 ms
6,944 KB |
testcase_13 | AC | 2 ms
6,944 KB |
testcase_14 | AC | 2 ms
6,944 KB |
testcase_15 | AC | 2 ms
6,944 KB |
testcase_16 | AC | 3 ms
6,940 KB |
testcase_17 | AC | 2 ms
6,944 KB |
testcase_18 | AC | 2 ms
6,940 KB |
testcase_19 | AC | 1,155 ms
94,592 KB |
testcase_20 | AC | 837 ms
58,752 KB |
testcase_21 | AC | 831 ms
58,752 KB |
testcase_22 | AC | 1,148 ms
94,464 KB |
testcase_23 | AC | 1,137 ms
94,592 KB |
testcase_24 | AC | 1,119 ms
94,592 KB |
testcase_25 | AC | 292 ms
22,784 KB |
testcase_26 | AC | 316 ms
22,656 KB |
testcase_27 | AC | 334 ms
22,528 KB |
testcase_28 | AC | 302 ms
22,784 KB |
testcase_29 | AC | 309 ms
22,656 KB |
testcase_30 | AC | 864 ms
58,752 KB |
testcase_31 | AC | 880 ms
58,752 KB |
testcase_32 | AC | 718 ms
40,448 KB |
testcase_33 | AC | 690 ms
40,448 KB |
testcase_34 | AC | 46 ms
6,940 KB |
testcase_35 | AC | 738 ms
76,544 KB |
testcase_36 | AC | 396 ms
49,152 KB |
ソースコード
#line 2 "cpplib/util/template.hpp" #pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") #pragma GCC target("avx2") #include<bits/stdc++.h> using namespace std; struct __INIT__{__INIT__(){cin.tie(0);ios::sync_with_stdio(false);cout<<fixed<<setprecision(15);}}__INIT__; typedef long long lint; #define INF (1LL<<60) #define IINF (1<<30) #define EPS (1e-10) #define endl ('\n') typedef vector<lint> vec; typedef vector<vector<lint>> mat; typedef vector<vector<vector<lint>>> mat3; typedef vector<string> svec; typedef vector<vector<string>> smat; template<typename T>using V=vector<T>; template<typename T>using VV=V<V<T>>; template<typename T>inline void output(T t){bool f=0;for(auto i:t){cout<<(f?" ":"")<<i;f=1;}cout<<endl;} template<typename T>inline void output2(T t){for(auto i:t)output(i);} template<typename T>inline void debug(T t){bool f=0;for(auto i:t){cerr<<(f?" ":"")<<i;f=1;}cerr<<endl;} template<typename T>inline void debug2(T t){for(auto i:t)output(i);} #define loop(n) for(long long _=0;_<(long long)(n);++_) #define _overload4(_1,_2,_3,_4,name,...) name #define __rep(i,a) repi(i,0,a,1) #define _rep(i,a,b) repi(i,a,b,1) #define repi(i,a,b,c) for(long long i=(long long)(a);i<(long long)(b);i+=c) #define rep(...) _overload4(__VA_ARGS__,repi,_rep,__rep)(__VA_ARGS__) #define _overload3_rev(_1,_2,_3,name,...) name #define _rep_rev(i,a) repi_rev(i,0,a) #define repi_rev(i,a,b) for(long long i=(long long)(b)-1;i>=(long long)(a);--i) #define rrep(...) _overload3_rev(__VA_ARGS__,repi_rev,_rep_rev)(__VA_ARGS__) // #define rep(i,...) for(auto i:range(__VA_ARGS__)) // #define rrep(i,...) for(auto i:reversed(range(__VA_ARGS__))) // #define repi(i,a,b) for(lint i=lint(a);i<(lint)(b);++i) // #define rrepi(i,a,b) for(lint i=lint(b)-1;i>=lint(a);--i) // #define irep(i) for(lint i=0;;++i) // inline vector<long long> range(long long n){if(n<=0)return vector<long long>();vector<long long>v(n);iota(v.begin(),v.end(),0LL);return v;} // inline vector<long long> range(long long a,long long b){if(b<=a)return vector<long long>();vector<long long>v(b-a);iota(v.begin(),v.end(),a);return v;} // inline vector<long long> range(long long a,long long b,long long c){if((b-a+c-1)/c<=0)return vector<long long>();vector<long long>v((b-a+c-1)/c);for(int i=0;i<(int)v.size();++i)v[i]=i?v[i-1]+c:a;return v;} // template<typename T>inline T reversed(T v){reverse(v.begin(),v.end());return v;} #define all(n) begin(n),end(n) template<typename T,typename E>bool chmin(T& s,const E& t){bool res=s>t;s=min<T>(s,t);return res;} template<typename T,typename E>bool chmax(T& s,const E& t){bool res=s<t;s=max<T>(s,t);return res;} const vector<lint> dx={1,0,-1,0,1,1,-1,-1}; const vector<lint> dy={0,1,0,-1,1,-1,1,-1}; #define SUM(v) accumulate(all(v),0LL) template<typename T,typename ...Args>auto make_vector(T x,int arg,Args ...args){if constexpr(sizeof...(args)==0)return vector<T>(arg,x);else return vector(arg,make_vector<T>(x,args...));} #define extrep(v,...) for(auto v:__MAKE_MAT__({__VA_ARGS__})) #define bit(n,a) ((n>>a)&1) vector<vector<long long>> __MAKE_MAT__(vector<long long> v){if(v.empty())return vector<vector<long long>>(1,vector<long long>());long long n=v.back();v.pop_back();vector<vector<long long>> ret;vector<vector<long long>> tmp=__MAKE_MAT__(v);for(auto e:tmp)for(long long i=0;i<n;++i){ret.push_back(e);ret.back().push_back(i);}return ret;} using graph=vector<vector<int>>; template<typename T>using graph_w=vector<vector<pair<int,T>>>; template<typename T,typename E>ostream& operator<<(ostream& out,pair<T,E>v){out<<"("<<v.first<<","<<v.second<<")";return out;} constexpr inline long long powll(long long a,long long b){long long res=1;while(b--)res*=a;return res;} #line 1 "cpplib/dsu/union_find.hpp" /** * @brief Union Find * @see https://ja.wikipedia.org/wiki/%E7%B4%A0%E9%9B%86%E5%90%88%E3%83%87%E3%83%BC%E3%82%BF%E6%A7%8B%E9%80%A0 */ class UF{ public: vector<int> data; int sz; public: UF(int sz):sz(sz){data.resize(sz,-1);} bool unite(int x,int y){ x=root(x);y=root(y); if(x==y)return 0; if(data[x]>data[y])swap(x,y); data[x]+=data[y]; data[y]=x; sz--; return 1; } inline int root(int x){return data[x]<0?x:data[x]=root(data[x]);} inline bool same(int x, int y){return root(x)==root(y);} inline int size(){return sz;} inline int size(int x){return -data[root(x)];} }; #line 3 "main.cpp" int main(){ lint n; cin>>n; map<lint,lint> v,u; set<lint>ss; map<lint,set<lint>>in,out; UF uf(202020); rep(i,n){ lint s,t; cin>>s>>t; v[s]++; u[t]++; ss.emplace(s); ss.emplace(t); in[t].emplace(s); out[s].emplace(t); uf.unite(s,t); } lint p=0,q=0,r=0,ng=0; lint st=0,ed=0; for(auto s:ss){ auto t=v[s]; if(t==u[s]){ p++; }else if(u[s]==t+1){ q++; ed=s; }else if(t==u[s]+1){ r++; st=s; }else{ ng=1; } } if(ng||uf.size()+ss.size()-1!=202020){ cout<<0<<endl; }else if(q==1&&r==1){ cout<<1<<endl; }else if(q==0&&r==0){ cout<<p<<endl; }else{ cout<<0<<endl; } }