結果
問題 | No.1479 Matrix Eraser |
ユーザー | hotman78 |
提出日時 | 2021-04-16 21:36:40 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 6,488 bytes |
コンパイル時間 | 4,606 ms |
コンパイル使用メモリ | 260,952 KB |
実行使用メモリ | 813,620 KB |
最終ジャッジ日時 | 2024-07-03 01:01:02 |
合計ジャッジ時間 | 7,422 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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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
6,816 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | WA | - |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | WA | - |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | MLE | - |
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 | -- | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
testcase_38 | -- | - |
testcase_39 | -- | - |
testcase_40 | -- | - |
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)debug(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 6 "cpplib/graph_tree/push_relabel.hpp" /** * @brief 最大流(push_relabel法O(V^2√E)) */ template<typename T> class push_relabel{ int n; T f=0; using i64=long long; struct edge{ int from,to,rev; T flow,cap; }; std::vector<i64>h,d; std::vector<std::vector<edge*>>g; std::vector<size_t>seen; std::priority_queue<std::pair<i64,int>,std::vector<std::pair<i64,int>>,std::greater<std::pair<i64,int>>>que; public: push_relabel(int n):n(n){ h.resize(n,0); d.resize(n,0); g.resize(n); seen.resize(n,0); } void add_edge(int u,int v,T cap){ g[u].emplace_back(new edge{u,v,(int)g[v].size(),0,cap}); g[v].emplace_back(new edge{v,u,(int)g[u].size()-1,0,0}); } void push(edge* e){ int u=e->from,v=e->to; i64 df=std::min(d[u],e->cap-e->flow); e->flow+=df; g[v][e->rev]->flow-=df; d[u]-=df; d[v]+=df; if(d[v]>0)que.emplace(h[v],v); if(d[u]>0)que.emplace(h[u],u); } void relabel(int u){ i64 mn=n*2; for(edge* e:g[u]){ if(e->cap-e->flow>0){ mn=std::min(mn,h[e->to]); } } h[u]=1+mn; que.emplace(h[u],u); } void discharge(int u){ while(d[u]>0){ if(seen[u]<g[u].size()){ edge* e=g[u][seen[u]]; if(e->cap-e->flow>0 && h[u]==h[e->to]+1){ push(e); }else{ seen[u]+=1; } }else{ relabel(u); seen[u]=0; } } } T run(int s,int t){ h[s]=n; for(auto e:g[s]){ d[s]+=e->cap; push(e); } while(!que.empty()){ int u=que.top().second; que.pop(); if(u==s||u==t)continue; discharge(u); } for(auto e:g[s])f+=e->flow; return f; } }; #line 3 "code.cpp" int main(){ lint h,w; cin>>h>>w; mat v(h,vec(w,0)); vector<lint>b; rep(i,h)rep(j,w){ cin>>v[i][j]; b.emplace_back(v[i][j]); } sort(all(b)); b.erase(unique(all(b)),b.end()); rep(i,h)rep(j,w)v[i][j]=lower_bound(all(b),v[i][j])-b.begin(); lint n=b.size(); vector<push_relabel<lint>>p(n,0); rep(i,n)p[i]=push_relabel<lint>(h+w+2); rep(i,h)rep(j,w){ p[v[i][j]].add_edge(i,j+h,INF); p[v[i][j]].add_edge(j+h,i,INF); } rep(i,n){ rep(j,h){ p[i].add_edge(h+w,j,1); } rep(j,w){ p[i].add_edge(j+h,h+w+1,1); } } lint ans=0; rep(i,n){ if(b[i])ans+=p[i].run(h+w,h+w+1); } cout<<ans<<endl; }