結果
問題 | No.1668 Grayscale |
ユーザー | kiyoshi0205 |
提出日時 | 2021-09-03 23:01:30 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 385 ms / 4,000 ms |
コード長 | 5,117 bytes |
コンパイル時間 | 3,099 ms |
コンパイル使用メモリ | 194,408 KB |
実行使用メモリ | 91,520 KB |
最終ジャッジ日時 | 2024-05-09 06:26:14 |
合計ジャッジ時間 | 5,583 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
(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 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 255 ms
89,216 KB |
testcase_07 | AC | 256 ms
89,088 KB |
testcase_08 | AC | 62 ms
7,296 KB |
testcase_09 | AC | 385 ms
91,520 KB |
testcase_10 | AC | 102 ms
8,960 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 5 ms
7,296 KB |
testcase_13 | AC | 21 ms
8,832 KB |
testcase_14 | AC | 62 ms
19,072 KB |
testcase_15 | AC | 29 ms
8,704 KB |
testcase_16 | AC | 19 ms
7,296 KB |
testcase_17 | AC | 15 ms
7,552 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 3 ms
5,376 KB |
testcase_21 | AC | 4 ms
6,528 KB |
testcase_22 | AC | 2 ms
5,376 KB |
testcase_23 | AC | 2 ms
5,376 KB |
ソースコード
#pragma GCC target("avx") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #include<bits/stdc++.h> // #include<ext/pb_ds/assoc_container.hpp> // #include<ext/pb_ds/tree_policy.hpp> // #include<ext/pb_ds/tag_and_trait.hpp> // using namespace __gnu_pbds; // #include<boost/multiprecision/cpp_int.hpp> // namespace multiprecisioninteger = boost::multiprecision; // using cint=multiprecisioninteger::cpp_int; using namespace std; using ll=long long; using datas=pair<ll,ll>; using ddatas=pair<long double,long double>; using tdata=pair<ll,datas>; using vec=vector<ll>; using mat=vector<vec>; using pvec=vector<datas>; using pmat=vector<pvec>; // using llset=tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update>; #define For(i,a,b) for(i=a;i<(ll)b;++i) #define bFor(i,b,a) for(i=b,--i;i>=(ll)a;--i) #define rep(i,N) For(i,0,N) #define rep1(i,N) For(i,1,N) #define brep(i,N) bFor(i,N,0) #define brep1(i,N) bFor(i,N,1) #define all(v) (v).begin(),(v).end() #define allr(v) (v).rbegin(),(v).rend() #define vsort(v) sort(all(v)) #define vrsort(v) sort(allr(v)) #define uniq(v) vsort(v),(v).erase(unique(all(v)),(v).end()) #define endl "\n" #define popcount __builtin_popcountll #define eb emplace_back #define print(x) cout<<x<<endl #define printyes print("Yes") #define printno print("No") #define printYES print("YES") #define printNO print("NO") #define output(v) do{bool f=0;for(auto outi:v){cout<<(f?" ":"")<<outi;f=1;}cout<<endl;}while(0) #define matoutput(v) do{for(auto outimat:v)output(outimat);}while(0) constexpr ll mod=1000000007; // constexpr ll mod=998244353; constexpr ll inf=1LL<<60; constexpr long double eps=1e-9; const long double PI=acosl(-1); template<class T,class E> ostream& operator<<(ostream& os,const pair<T,E>& p){return os<<"("<<p.first<<","<<p.second<<")";} template<class T> ostream& operator<<(ostream& os,const vector<T>& v){ os<<"{";bool f=false; for(auto& x:v){if(f)os<<",";os<<x;f=true;} os<<"}"; return os; } template<class T> ostream& operator<<(ostream& os,const set<T>& v){ os<<"{";bool f=false; for(auto& x:v){if(f)os<<",";os<<x;f=true;} os<<"}"; return os; } template<class T> ostream& operator<<(ostream& os,const multiset<T>& v){ os<<"{";bool f=false; for(auto& x:v){if(f)os<<",";os<<x;f=true;} os<<"}"; return os; } template<class T,class E> ostream& operator<<(ostream& os,const map<T,E>& v){ os<<"{";bool f=false; for(auto& x:v){if(f)os<<",";os<<x;f=true;} os<<"}"; return os; } template<class T> inline bool chmax(T& a,const T b){bool x=a<b;if(x)a=b;return x;} template<class T> inline bool chmin(T& a,const T b){bool x=a>b;if(x)a=b;return x;} #ifdef DEBUG void debugg(){cout<<endl;} template<class T,class... Args>void debugg(const T& x,const Args&... args){cout<<" "<<x;debugg(args...);} #define debug(...) cout<<__LINE__<<" ["<<#__VA_ARGS__<<"]:",debugg(__VA_ARGS__) #else #define debug(...) (void(0)) #endif inline void startupcpp(void) noexcept{ cin.tie(0); ios::sync_with_stdio(false); cout<<fixed<<setprecision(15); } template<typename T> struct segtree{ private: int N=1; T E; using func=function<T(T,T)>; func f,g; vector<T> tree; public: segtree(){} segtree(vector<T>& v,T e,func Merge,func Act):E(e),f(Merge),g(Act){ int i,K=v.size(); while(N<K)N<<=1; tree.resize(N<<1); For(i,N,N+K)tree[i]=v[i-N]; For(i,N+K,N<<1)tree[i]=E; brep1(i,N)tree[i]=f(tree[i<<1],tree[(i<<1)|1]); } segtree(vector<T>& v,T e,func Merge){*this=segtree(v,e,Merge,Merge);}; segtree(int N,T e,func F){ vector<T> res(N,e); *this=segtree(res,e,F); } void action(int i,T a){ if((i<0)|(i>=N))return; i|=N; tree[i]=g(tree[i],a); while(i>1){ i>>=1; tree[i]=f(tree[i<<1],tree[(i<<1)|1]); } } void set(int i,T a){ if((i<0)|(i>=N))return; tree[i|=N]=a; while(i>1){ i>>=1; tree[i]=f(tree[i<<1],tree[(i<<1)|1]); } } T prod(int a,int b){ if((a>=b)|(a<0)|(b<=0)|(a>=N)|(b>N))return E; T l(E),r(E); for(a|=N,b+=N;a<b;a>>=1,b>>=1){ if(a&1)l=f(l,tree[a++]); if(b&1)r=f(tree[--b],r); } return f(l,r); } }; vector<ll> dijkstra(pmat& g,ll first){ priority_queue<datas,pvec,greater<datas>> que; que.emplace(0,first); vector<ll> dist(g.size(),inf); while(!que.empty()){ datas x=que.top();que.pop(); if(!chmin(dist[x.second],x.first))continue; for(auto next:g[x.second]){ next.first+=x.first; if(!chmin(dist[next.second],next.first+1))continue; que.emplace(next); } } return dist; } int H,W,N,fg[1000][1000]; int main(){ startupcpp(); ll i,j; cin>>H>>W>>N; vector<int> g(N,0); rep(i,H)rep(j,W){ int x; cin>>x; fg[i][j]=--x; if(i){ int y=fg[i-1][j]; if(x>y)chmax(g[x],y+1); if(x<y)chmax(g[y],x+1); } if(j){ int y=fg[i][j-1]; if(x>y)chmax(g[x],y+1); if(x<y)chmax(g[y],x+1); } } debug(g); rep(i,N-1)chmax(g[i+1],g[i]); debug(g); pmat sg(N+1); rep(i,N){ sg[i+1].emplace_back(0,i); sg[g[i]].emplace_back(1,i+1); } print(dijkstra(sg,0).back()); }