結果
問題 | No.1524 Upward Mobility |
ユーザー | vwxyz |
提出日時 | 2023-05-24 23:14:10 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 1,289 ms / 6,000 ms |
コード長 | 11,343 bytes |
コンパイル時間 | 292 ms |
コンパイル使用メモリ | 82,048 KB |
実行使用メモリ | 178,116 KB |
最終ジャッジ日時 | 2024-06-06 09:00:30 |
合計ジャッジ時間 | 24,790 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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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 | 864 ms
178,116 KB |
testcase_01 | AC | 976 ms
152,112 KB |
testcase_02 | AC | 1,289 ms
161,848 KB |
testcase_03 | AC | 681 ms
112,916 KB |
testcase_04 | AC | 1,082 ms
140,412 KB |
testcase_05 | AC | 1,112 ms
143,452 KB |
testcase_06 | AC | 1,152 ms
145,604 KB |
testcase_07 | AC | 1,116 ms
140,280 KB |
testcase_08 | AC | 1,186 ms
141,296 KB |
testcase_09 | AC | 1,106 ms
142,796 KB |
testcase_10 | AC | 1,054 ms
151,640 KB |
testcase_11 | AC | 274 ms
119,592 KB |
testcase_12 | AC | 310 ms
119,532 KB |
testcase_13 | AC | 556 ms
120,116 KB |
testcase_14 | AC | 560 ms
116,148 KB |
testcase_15 | AC | 659 ms
120,076 KB |
testcase_16 | AC | 1,112 ms
139,280 KB |
testcase_17 | AC | 947 ms
130,400 KB |
testcase_18 | AC | 568 ms
93,540 KB |
testcase_19 | AC | 963 ms
129,592 KB |
testcase_20 | AC | 601 ms
98,324 KB |
testcase_21 | AC | 653 ms
102,456 KB |
testcase_22 | AC | 43 ms
53,760 KB |
testcase_23 | AC | 41 ms
54,272 KB |
testcase_24 | AC | 40 ms
54,144 KB |
testcase_25 | AC | 43 ms
54,400 KB |
testcase_26 | AC | 42 ms
54,272 KB |
testcase_27 | AC | 40 ms
54,016 KB |
testcase_28 | AC | 41 ms
54,144 KB |
testcase_29 | AC | 272 ms
117,376 KB |
testcase_30 | AC | 261 ms
117,132 KB |
testcase_31 | AC | 434 ms
118,412 KB |
testcase_32 | AC | 1,099 ms
160,556 KB |
ソースコード
import sys readline=sys.stdin.readline class AVL_Node_dict: """ノード Attributes: key (any): ノードのキー。比較可能なものであれば良い。(1, 4)などタプルも可。 val (any): ノードの値。 left (Node): 左の子ノード。 right (Node): 右の子ノード。 bias (int): 平衡度。(左部分木の高さ)-(右部分木の高さ)。 size (int): 自分を根とする部分木の大きさ """ def __init__(self,parent,key,value): self.parent=parent self.key=key self.value=value self.left=None self.right=None self.bias=0 self.size=1 class AVLTree_dict: def __init__(self): self.root=None def Rotate_Left(self,node): node_right=node.right node_right.size=node.size node.size-=1 if node_right.right!=None: node.size-=node_right.right.size if node_right.bias==-1: node_right.bias=0 node.bias=0 else: #assert node_right.bias==0 node_right.bias=1 node.bias=-1 node.right=node_right.left node_right.left=node return node_right def Rotate_Right(self,node): node_left=node.left node_left.size=node.size node.size-=1 if node_left.left!=None: node.size-=node_left.left.size if node_left.bias==1: node_left.bias=0 node.bias=0 else: #assert node_left.bias==0 node_left.bias=-1 node.bias=1 node.left=node_left.right node_left.right=node return node_left def Rotate_Left_Right(self,node): node_left=node.left node_left_right=node_left.right #assert node.bias==2 #assert node_left.bias==-1 #assert node_left_right.bias in (-1,0,1) node_left_right.size=node.size node.size-=node_left.size if node_left_right.right!=None: node.size+=node_left_right.right.size node_left.size-=1 if node_left_right.right!=None: node_left.size-=node_left_right.right.size node_left.right=node_left_right.left node_left_right.left=node_left node.left=node_left_right.right node_left_right.right=node self.Update_Bias_Double(node_left_right) return node_left_right def Rotate_Right_Left(self,node): node_right=node.right node_right_left=node_right.left #assert node.bias==-2 #assert node_right.bias==1 #assert node_right_left.bias in (-1,0,1) node_right_left.size=node.size node.size-=node_right.size if node_right_left.left!=None: node.size+=node_right_left.left.size node_right.size-=1 if node_right_left.left!=None: node_right.size-=node_right_left.left.size node_right.left=node_right_left.right node_right_left.right=node_right node.right=node_right_left.left node_right_left.left=node self.Update_Bias_Double(node_right_left) return node_right_left def Update_Bias_Double(self,node): #assert node.right.bias*node.left.bias==-2 #assert node.right.bias>0 if node.bias==1: node.right.bias=-1 node.left.bias=0 elif node.bias==-1: node.right.bias=0 node.left.bias=1 else: node.right.bias=0 node.left.bias=0 node.bias=0 def __getitem__(self,key): v=self.root while v!=None: if key<v.key: v=v.left elif v.key<key: v=v.right else: return v.value return None def __setitem__(self,key,value): if self.root==None: self.root=AVL_Node_dict(None,key,value) return v=self.root stack=[] while v!=None: if key<v.key: stack.append((v,1)) v=v.left elif v.key<key: stack.append((v,-1)) v=v.right elif v.key==key: v.value=value return p,direction=stack[-1] if direction==1: p.left=AVL_Node_dict(p,key,value) else: p.right=AVL_Node_dict(p,key,value) while stack: v,direction=stack.pop() v.bias+=direction v.size+=1 vv=None if v.bias==2: if v.left.bias==-1: vv=self.Rotate_Left_Right(v) else: vv=self.Rotate_Right(v) #assert vv!=None break if v.bias==-2: if v.right.bias==1: vv=self.Rotate_Right_Left(v) else: vv=self.Rotate_Left(v) #assert vv!=None break if v.bias==0: break if vv!=None: if len(stack)==0: self.root=vv return p,direction=stack.pop() p.size+=1 if direction==1: p.left=vv else: p.right=vv while stack: p,direction=stack.pop() p.size+=1 def __delitem__(self,key): v=self.root stack=[] while v!=None: if key<v.key: stack.append((v,1)) v=v.left elif v.key<key: stack.append((v,-1)) v=v.right else: break else: return False if v.left!=None: stack.append((v,1)) lmax=v.left while lmax.right!=None: stack.append((lmax,-1)) lmax=lmax.right v.key=lmax.key v.value=lmax.value v=lmax c=v.right if v.left==None else v.left if stack: p,direction=stack[-1] if direction==1: p.left=c else: p.right=c else: self.root=c return True while stack: pp=None p,direction=stack.pop() p.bias-=direction p.size-=1 if p.bias==2: if p.left.bias==-1: pp=self.Rotate_Left_Right(p) else: pp=self.Rotate_Right(p) elif p.bias==-2: if p.right.bias==1: pp=self.Rotate_Right_Left(p) else: pp=self.Rotate_Left(p) elif p.bias!=0: break if pp!=None: if len(stack)==0: self.root=pp return True p,direction=stack[-1] if direction==1: p.left=pp else: p.right=pp if pp.bias!=0: break while stack: p,direction=stack.pop() p.size-=1 return True def __contains__(self,key): v=self.root while v!=None: if key<v.key: v=v.left elif v.key<key: v=v.right else: return True return False def Bisect_Right(self,key): retu=None v=self.root while v!=None: if v.key>key: if retu==None or retu[0]>v.key: retu=(v.key,v.value) v=v.left else: v=v.right return retu def Bisect_Left(self,key): retu=None v=self.root while v!=None: if v.key<key: if retu==None or retu[0]<v.key: retu=(v.key,v.value) v=v.right else: v=v.left return retu def Find_Kth_Element(self,K): v=self.root s=0 while v!=None: t=s+v.left.size if v.left!=None else s if t==K: return v.key,v.value elif t<K: s=t+1 v=v.right else: v=v.left return None def keys(self): stack=[(self.root,True)] while stack: node,subtree=stack.pop() if subtree: if node.right!=None: stack.append((node.right,True)) stack.append((node,False)) if node.left!=None: stack.append((node.left,True)) else: yield node.key def values(self): stack=[(self.root,True)] while stack: node,subtree=stack.pop() if subtree: if node.right!=None: stack.append((node.right,True)) stack.append((node,False)) if node.left!=None: stack.append((node.left,True)) else: yield node.value def items(self): stack=[(self.root,True)] while stack: node,subtree=stack.pop() if subtree: if node.right!=None: stack.append((node.right,True)) stack.append((node,False)) if node.left!=None: stack.append((node.left,True)) else: yield (node.key,node.value) def __bool__(self): return self.root!=None def __len__(self): return 0 if self.root==None else self.root.size def __iter__(self): return iter(self.keys()) def __str__(self): if self.root==None: retu="{}" else: retu="{"+", ".join(f"{r}: {m}" for r,m in self.items())+"}" return retu N=int(readline()) child=[[] for x in range(N)] for x,p in enumerate(map(int,readline().split()),1): p-=1 child[p].append(x) A=list(map(int,readline().split())) for i in range(N): A[i]-=1 B=list(map(int,readline().split())) dp=[None]*N for x in range(N-1,-1,-1): if child[x]: ma=max(len(dp[y]) for y in child[x]) for y in child[x]: if len(dp[y])==ma: yy=y break dp[x]=dp[yy] for y in child[x]: if y==yy: continue for a,d in dp[y].items(): dp[x][a]=d a=A[x]+1 dp[x][a]=B[x] while B[x]: ad=dp[x].Bisect_Left(a) retu=None v=dp[x].root while v!=None: if v.key<a: if retu==None or retu.key<v.key: retu=v v=v.right else: v=v.left v=retu if v==None: break a,d=v.key,v.value d=min(B[x],d) v.value-=d if v.value==0: del dp[x][a] B[x]-=d else: dp[x]=AVLTree_dict() dp[x][A[x]+1]=B[x] ans=sum(dp[0].values()) print(ans)