結果
問題 |
No.697 池の数はいくつか
|
ユーザー |
![]() |
提出日時 | 2022-01-05 07:09:48 |
言語 | Python3 (3.13.1 + numpy 2.2.1 + scipy 1.14.1) |
結果 |
MLE
|
実行時間 | - |
コード長 | 3,636 bytes |
コンパイル時間 | 202 ms |
コンパイル使用メモリ | 13,184 KB |
実行使用メモリ | 817,716 KB |
最終ジャッジ日時 | 2024-11-25 17:08:08 |
合計ジャッジ時間 | 57,110 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | MLE * 3 |
other | AC * 26 TLE * 3 MLE * 3 |
ソースコード
import sys readline=sys.stdin.readline from collections import deque class Graph: def __init__(self,V,edges=False,graph=False,directed=False,weighted=False,inf=float("inf")): self.V=V self.directed=directed self.weighted=weighted self.inf=inf if not graph: self.edges=edges self.graph=[[] for i in range(self.V)] if weighted: for i,j,d in self.edges: self.graph[i].append((j,d)) if not self.directed: self.graph[j].append((i,d)) else: for i,j in self.edges: self.graph[i].append(j) if not self.directed: self.graph[j].append(i) else: self.graph=graph self.edges=[] for i in range(self.V): if self.weighted: for j,d in self.graph[i]: if self.directed or not self.directed and i<=j: self.edges.append((i,j,d)) else: for j in self.graph[i]: if self.directed or not self.directed and i<=j: self.edges.append((i,j)) def MIV_BFS(self,initial_vertices=False,bipartite_graph=False,linked_components=False,parents=False): if not initial_vertices: initial_vertices=[i for i in range(self.V)] seen=[False]*self.V if bipartite_graph: bg=[None]*self.V cnt=-1 if linked_components: lc=[] if parents: ps=[None]*self.V for s in initial_vertices: if seen[s]: continue seen[s]=True if bipartite_graph: cnt+=1 bg[s]=(cnt,0) if linked_components: lc.append([s]) queue=deque([s]) while queue: x=queue.popleft() for y in self.graph[x]: if self.weighted: y,d=y if not seen[y]: seen[y]=True queue.append(y) if bipartite_graph: bg[y]=(cnt,bg[x][1]^1) if linked_components: lc[-1].append(y) if parents: ps[y]=x if bipartite_graph: bg_=bg bg=[[[],[]] for i in range(cnt+1)] for tpl in self.edges: i,j=tpl[:2] if self.weighted else tpl if not bg_[i][1]^bg_[j][1]: bg[bg_[i][0]]=False for x in range(self.V): if bg[bg_[x][0]]: bg[bg_[x][0]][bg_[x][1]].append(x) retu=() if bipartite_graph: retu+=(bg,) if linked_components: retu+=(lc,) if parents: retu=(ps,) if len(retu)==1: retu=retu[0] return retu H,W=map(int,readline().split()) A=[list(map(int,readline().split())) for h in range(H)] edges=[] for h in range(H-1): for w in range(W): if A[h][w] and A[h+1][w]: edges.append((h*W+w,(h+1)*W+w)) for h in range(H): for w in range(W-1): if A[h][w] and A[h][w+1]: edges.append((h*W+w,h*W+w+1)) G=Graph(H*W,edges=edges) ans=len(G.MIV_BFS(linked_components=True)) for h in range(H): for w in range(W): if A[h][w]==0: ans-=1 print(ans)