結果
問題 | No.340 雪の足跡 |
ユーザー | holeguma |
提出日時 | 2016-01-29 23:12:23 |
言語 | Java21 (openjdk 21) |
結果 |
WA
|
実行時間 | - |
コード長 | 6,009 bytes |
コンパイル時間 | 2,816 ms |
コンパイル使用メモリ | 87,468 KB |
実行使用メモリ | 129,080 KB |
最終ジャッジ日時 | 2024-09-21 18:38:52 |
合計ジャッジ時間 | 8,766 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
(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 | WA | - |
testcase_01 | WA | - |
testcase_02 | AC | 48 ms
36,704 KB |
testcase_03 | WA | - |
testcase_04 | AC | 48 ms
36,972 KB |
testcase_05 | AC | 52 ms
37,080 KB |
testcase_06 | WA | - |
testcase_07 | AC | 47 ms
36,920 KB |
testcase_08 | AC | 48 ms
36,752 KB |
testcase_09 | WA | - |
testcase_10 | AC | 48 ms
36,924 KB |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | TLE | - |
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 | -- | - |
ソースコード
import java.io.InputStream; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Arrays; import java.util.Comparator; import java.util.InputMismatchException; import java.util.NoSuchElementException; import java.math.BigInteger; public class Main{ static PrintWriter out; static InputReader ir; static void solve(){ int w=ir.nextInt(),h=ir.nextInt(),n=ir.nextInt(); int[] d={w,-1,-w,1}; G g=new G(w*h,false); boolean[][] ag=new boolean[w*h][4]; while(n-->0){ int m=ir.nextInt(); int[] b=ir.nextIntArray(m+1); for(int i=0;i<m;i++){ if(Math.abs(b[i]-b[i+1])>=w){ int e=Math.abs(b[i]-b[i+1])/w; if(b[i]>b[i+1]){ for(int j=0;j<e;j++){ ag[b[i]-w*j][2]=true; ag[b[i]-w*(j+1)][0]=true; } } else{ for(int j=0;j<e;j++){ ag[b[i]+w*j][0]=true; ag[b[i]+w*(j+1)][2]=true; } } } else{ int e=Math.abs(b[i]-b[i+1]); if(b[i]>b[i+1]){ for(int j=0;j<e;j++){ ag[b[i]-j][1]=true; ag[b[i]-(j+1)][3]=true; } } else{ for(int j=0;j<e;j++){ ag[b[i]+j][3]=true; ag[b[i]+j+1][1]=true; } } } } } for(int i=0;i<h*w;i++){ for(int j=0;j<4;j++){ if(ag[i][j]) g.addEdge(i,i+d[j]); } } int[] dist=g.dijkstra(0); if(dist[h*w-1]==1<<26) out.println("Odekakedekinai.."); else out.println(dist[h*w-1]); } static class G{ AL[] g,rg; private int V; private boolean ndir; public G(int V,boolean ndir){ this.V=V; this.ndir=ndir; g=new AL[V]; for(int i=0;i<V;i++) g[i]=new AL(); } public void addEdge(int u,int v,int t){ g[u].add(new int[]{v,t}); if(this.ndir) g[v].add(new int[]{u,t}); } public void addEdge(int u,int v){ addEdge(u,v,0); } public int to(int from,int ind){return g[from].get(ind)[0];} public int cost(int from,int ind){return g[from].get(ind)[1];} public int[] dijkstra(int s){ int[] dist=new int[this.V]; java.util.PriorityQueue<int[]> pque=new java.util.PriorityQueue<int[]>(11,new Comparator<int[]>(){ public int compare(int[] a,int[] b){ return Integer.compare(a[0],b[0]); } }); Arrays.fill(dist,1<<26); dist[s]=0; pque.offer(new int[]{0,s}); while(!pque.isEmpty()){ int[] p=pque.poll(); int v=p[1]; if(dist[v]<p[0]) continue; for(int i=0;i<g[v].size();i++){ int to=to(v,i),cost=cost(v,i); if(dist[to]>dist[v]+cost){ dist[to]=dist[v]+cost; pque.offer(new int[]{dist[to],to}); } } } return dist; } public int[] tporder(){ boolean[] vis=new boolean[V]; ArrayList<Integer> ord=new ArrayList<>(); for(int i=0;i<V;i++) if(!vis[i]) ts(i,vis,ord); int[] ret=new int[V]; for(int i=ord.size()-1;i>=0;i--) ret[ord.size()-1-i]=ord.get(i); return ret; } public int[] scc(){ rg=new AL[V]; for(int i=0;i<V;i++) rg[i]=new AL(); int from,to; for(int i=0;i<V;i++){ for(int j=0;j<g[i].size();j++){ to=i; from=to(i,j); rg[from].add(new int[]{to,0}); } } int[] ord=tporder(); int k=0; boolean[] vis=new boolean[V]; int[] ret=new int[V+1]; for(int i=0;i<V;i++) if(!vis[i]) rs(ord[i],vis,ret,k++); ret[V]=k; return ret; } private void ts(int now,boolean[] vis,ArrayList<Integer> ord){ vis[now]=true; int to; for(int i=0;i<g[now].size();i++){ to=to(now,i); if(!vis[to]) ts(to,vis,ord); } ord.add(now); } private void rs(int now,boolean[] vis,int[] ret,int k){ vis[now]=true; ret[now]=k; int to; for(int i=0;i<rg[now].size();i++){ to=rg[now].get(i)[0]; if(!vis[to]) rs(to,vis,ret,k); } } static class AL extends ArrayList<int[]>{}; } public static void main(String[] args) throws Exception{ ir=new InputReader(System.in); out=new PrintWriter(System.out); solve(); out.flush(); } static class InputReader { private InputStream in; private byte[] buffer=new byte[1024]; private int curbuf; private int lenbuf; public InputReader(InputStream in) {this.in=in; this.curbuf=this.lenbuf=0;} public boolean hasNextByte() { if(curbuf>=lenbuf){ curbuf= 0; try{ lenbuf=in.read(buffer); }catch(IOException e) { throw new InputMismatchException(); } if(lenbuf<=0) return false; } return true; } private int readByte(){if(hasNextByte()) return buffer[curbuf++]; else return -1;} private boolean isSpaceChar(int c){return !(c>=33&&c<=126);} private void skip(){while(hasNextByte()&&isSpaceChar(buffer[curbuf])) curbuf++;} public boolean hasNext(){skip(); return hasNextByte();} public String next(){ if(!hasNext()) throw new NoSuchElementException(); StringBuilder sb=new StringBuilder(); int b=readByte(); while(!isSpaceChar(b)){ sb.appendCodePoint(b); b=readByte(); } return sb.toString(); } public int nextInt() { if(!hasNext()) throw new NoSuchElementException(); int c=readByte(); while (isSpaceChar(c)) c=readByte(); boolean minus=false; if (c=='-') { minus=true; c=readByte(); } int res=0; do{ if(c<'0'||c>'9') throw new InputMismatchException(); res=res*10+c-'0'; c=readByte(); }while(!isSpaceChar(c)); return (minus)?-res:res; } public long nextLong() { if(!hasNext()) throw new NoSuchElementException(); int c=readByte(); while (isSpaceChar(c)) c=readByte(); boolean minus=false; if (c=='-') { minus=true; c=readByte(); } long res = 0; do{ if(c<'0'||c>'9') throw new InputMismatchException(); res=res*10+c-'0'; c=readByte(); }while(!isSpaceChar(c)); return (minus)?-res:res; } public double nextDouble(){return Double.parseDouble(next());} public BigInteger nextBigInteger(){return new BigInteger(next());} public int[] nextIntArray(int n){ int[] a=new int[n]; for(int i=0;i<n;i++) a[i]=nextInt(); return a; } public long[] nextLongArray(int n){ long[] a=new long[n]; for(int i=0;i<n;i++) a[i]=nextLong(); return a; } public char[][] nextCharMap(int n,int m){ char[][] map=new char[n][m]; for(int i=0;i<n;i++) map[i]=next().toCharArray(); return map; } } }