結果
問題 | No.421 しろくろチョコレート |
ユーザー | ああいい |
提出日時 | 2022-02-24 13:19:35 |
言語 | PyPy3 (7.3.15) |
結果 |
RE
|
実行時間 | - |
コード長 | 3,338 bytes |
コンパイル時間 | 298 ms |
コンパイル使用メモリ | 82,432 KB |
実行使用メモリ | 79,664 KB |
最終ジャッジ日時 | 2024-07-02 11:29:34 |
合計ジャッジ時間 | 7,703 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | RE | - |
testcase_01 | RE | - |
testcase_02 | WA | - |
testcase_03 | RE | - |
testcase_04 | RE | - |
testcase_05 | RE | - |
testcase_06 | RE | - |
testcase_07 | RE | - |
testcase_08 | WA | - |
testcase_09 | RE | - |
testcase_10 | RE | - |
testcase_11 | RE | - |
testcase_12 | AC | 46 ms
54,144 KB |
testcase_13 | AC | 47 ms
54,272 KB |
testcase_14 | AC | 46 ms
54,272 KB |
testcase_15 | AC | 46 ms
54,272 KB |
testcase_16 | RE | - |
testcase_17 | AC | 159 ms
79,112 KB |
testcase_18 | AC | 150 ms
78,920 KB |
testcase_19 | AC | 47 ms
54,400 KB |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | RE | - |
testcase_23 | AC | 48 ms
53,888 KB |
testcase_24 | WA | - |
testcase_25 | AC | 48 ms
54,272 KB |
testcase_26 | RE | - |
testcase_27 | WA | - |
testcase_28 | AC | 122 ms
77,740 KB |
testcase_29 | AC | 127 ms
78,364 KB |
testcase_30 | AC | 128 ms
77,824 KB |
testcase_31 | AC | 127 ms
79,324 KB |
testcase_32 | AC | 140 ms
78,684 KB |
testcase_33 | AC | 154 ms
78,716 KB |
testcase_34 | AC | 57 ms
62,208 KB |
testcase_35 | AC | 60 ms
62,848 KB |
testcase_36 | RE | - |
testcase_37 | RE | - |
testcase_38 | AC | 172 ms
79,104 KB |
testcase_39 | RE | - |
testcase_40 | RE | - |
testcase_41 | RE | - |
testcase_42 | RE | - |
testcase_43 | RE | - |
testcase_44 | RE | - |
testcase_45 | RE | - |
testcase_46 | RE | - |
testcase_47 | WA | - |
testcase_48 | WA | - |
testcase_49 | RE | - |
testcase_50 | RE | - |
testcase_51 | RE | - |
testcase_52 | RE | - |
testcase_53 | RE | - |
testcase_54 | WA | - |
testcase_55 | RE | - |
testcase_56 | RE | - |
testcase_57 | RE | - |
testcase_58 | WA | - |
testcase_59 | RE | - |
testcase_60 | AC | 199 ms
79,664 KB |
testcase_61 | AC | 187 ms
79,628 KB |
testcase_62 | RE | - |
testcase_63 | WA | - |
testcase_64 | AC | 55 ms
60,928 KB |
ソースコード
#Dinic法で最大流を求める #deque のimport が必要 #逆辺追加しなきゃいけないから、 #グラフの構成はadd_edgeで行う #最大流は flow メソッドで from collections import deque class Dinic: def __init__(self,N): self.N = N self.G = [[] for _ in range(N)] self.level = None self.progress = None self.edge = [] def add_edge(self,fr,to,cap): forward = [to,cap,None] forward[2] = backward = [fr,0,forward] self.G[fr].append(forward) self.G[to].append(backward) self.edge.append(forward) def add_multi_edge(self,v1,v2,cap1,cap2): edge1 = [v2,cap1,None] edge1[2] = edge2 = [v1,cap2,edge1] self.G[v1].append(edge1) self.G[v2].append(edge2) self.edge.append(edge1) def get_edge(self,i): return self.edge[i] # i 回目に追加した辺のポインタを返す # 0-index, 順辺のみ def bfs(self,s,t): self.level = level = [None] * self.N q = deque([s]) level[s] = 0 G = self.G while q: v = q.popleft() lv = level[v] + 1 for w,cap,_ in G[v]: if cap and level[w] is None: level[w] = lv q.append(w) return level[t] is not None def dfs(self,v,t,f): if v == t:return f level = self.level Gv = self.G[v] for i in range(self.progress[v],len(Gv)): self.progress[v] = i w,cap,rev = e = Gv[i] if cap and level[v] < level[w]: d = self.dfs(w,t,min(f,cap)) if d: e[1] -= d rev[1] += d return d return 0 def flow(self,s,t,): flow = 0 inf = 1 << 30 G = self.G while self.bfs(s,t): self.progress = [0] * self.N f = inf while f: f = self.dfs(s,t,inf) flow += f return flow def min_cut(self,s): #最小カットを実現する頂点の分割を与える #True なら source側 #False なら sink側 visited = [False for i in range(self.N)] q = deque([s]) while q: now = q.popleft() visited[now] = True for to,cap,_ in self.G[now]: if cap and not visited[to]: visited[to] = True q.append(to) return visited N,M = map(int,input().split()) S = [input() for _ in range(N)] countb = 0 countw = 0 dinic = Dinic(N * M + 2) T = N * M + 1 def f(h,w): return h * M + w + 1 for h in range(N): for w in range(M): if S[h][w] == "w": countw += 1 dinic.add_edge(f(h,w),T,1) elif S[h][w] == "b": countb += 1 dinic.add_edge(0,f(h,w),1) for i,j in [(1,0),(-1,0),(0,1),(0,-1)]: if 0 <= h + i < N and 0 <= w + j < N: if S[h+i][w+j] == "w": dinic.add_edge(f(h,w),f(h+i,w+j),1) match = dinic.flow(0,T) countb -= match countw -= match num = min(countw,countb) countb -= num countw -= num ans = 100 * match + 10 * num + countb + countw print(ans)