#900050 (PyPy3) No.2020 Sum of Common Prefix Length

提出ソース

結果

問題	No.2020 Sum of Common Prefix Length
ユーザー	vwxyz
提出日時	2023-08-11 05:19:51
言語	PyPy3 (7.3.15)
結果	AC
実行時間	1,263 ms / 2,000 ms
コード長	14,077 bytes
コンパイル時間	180 ms
コンパイル使用メモリ	82,320 KB
実行使用メモリ	361,204 KB
最終ジャッジ日時	2024-04-28 22:11:09
合計ジャッジ時間	27,050 ms
ジャッジサーバーID （参考情報）	judge5 / judge4

このコードへのチャレンジ
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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	46 ms 55,296 KB
testcase_01	AC	49 ms 55,040 KB
testcase_02	AC	43 ms 54,784 KB
testcase_03	AC	145 ms 78,988 KB
testcase_04	AC	145 ms 78,864 KB
testcase_05	AC	145 ms 79,040 KB
testcase_06	AC	146 ms 78,756 KB
testcase_07	AC	560 ms 114,508 KB
testcase_08	AC	720 ms 114,440 KB
testcase_09	AC	505 ms 114,376 KB
testcase_10	AC	497 ms 114,912 KB
testcase_11	AC	515 ms 114,604 KB
testcase_12	AC	505 ms 114,912 KB
testcase_13	AC	511 ms 114,980 KB
testcase_14	AC	516 ms 114,820 KB
testcase_15	AC	612 ms 135,868 KB
testcase_16	AC	621 ms 136,624 KB
testcase_17	AC	769 ms 213,652 KB
testcase_18	AC	712 ms 185,300 KB
testcase_19	AC	728 ms 185,172 KB
testcase_20	AC	1,041 ms 319,988 KB
testcase_21	AC	1,225 ms 306,680 KB
testcase_22	AC	1,251 ms 306,428 KB
testcase_23	AC	1,204 ms 304,140 KB
testcase_24	AC	1,242 ms 321,240 KB
testcase_25	AC	1,263 ms 317,964 KB
testcase_26	AC	608 ms 233,356 KB
testcase_27	AC	43 ms 54,528 KB
testcase_28	AC	568 ms 122,712 KB
testcase_29	AC	560 ms 123,316 KB
testcase_30	AC	572 ms 122,528 KB
testcase_31	AC	1,024 ms 344,828 KB
testcase_32	AC	1,012 ms 361,204 KB
testcase_33	AC	719 ms 256,336 KB
testcase_34	AC	695 ms 162,900 KB
testcase_35	AC	717 ms 163,016 KB
testcase_36	AC	771 ms 261,804 KB
testcase_37	AC	779 ms 207,440 KB

権限があれば一括ダウンロードができます

ソースコード

raw source code

import sys
readline=sys.stdin.readline

class Node:
    def __init__(self,parent,e,i):
        self.parent=parent
        self.children={}
        self.value=e
        self.cnt=0
        self.i=i

    def Parent(self):
        return self.parent

    def __getitem__(self,x):
        return self.children[x]

class Trie:
    def __init__(self,e=None):
        self.e=e
        self.root=Node(None,self.e,0)
        self.node_cnt=1

    def __getitem__(self,key):
        node=self.root
        for x in key:
            if not x in node.children:
                return self.e
            node=node[x]
        return node.value

    def __setitem__(self,key,value):
        node=self.root
        for x in key:
            if not x in node.children:
                node.children[x]=Node(node,self.e,self.node_cnt)
                self.node_cnt+=1
            node=node[x]
        if node.value==self.e:
            node=self.root
            node.cnt+=1
            for x in key:
                node=node[x]
                node.cnt+=1
        node.value=value

    def __delitem__(self,key):
        node=self.root
        for x in key:
            if not x in node.children:
                return
            node=node[x]
        node=self.root
        node.cnt-=1
        for x in key:
            node=node[x]
            node.cnt-=1
        node.value=self.e

    def __contains__(self,key):
        node=self.root
        for x in key:
            if not x in node.children:
                return False
            node=node[x]
        return True

    def __len__(self):
        return self.root.cnt

    def Nodes(self):
        queue=[self.root]
        retu=[]
        while queue:
            node=queue.pop()
            retu.append(node)
            for x,node in node.children.items():
                queue.append(node)
        return retu

class Graph:
    def __init__(self,V,edges=None,graph=None,directed=False,weighted=False,inf=float("inf")):
        self.V=V
        self.directed=directed
        self.weighted=weighted
        self.inf=inf
        if graph!=None:
            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))
        else:
            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)

    def SIV_DFS(self,s,bipartite_graph=False,cycle_detection=False,directed_acyclic=False,euler_tour=False,linked_components=False,lowlink=False,parents=False,postorder=False,preorder=False,subtree_size=False,topological_sort=False,unweighted_dist=False,weighted_dist=False):
        seen=[False]*self.V
        finished=[False]*self.V
        if directed_acyclic or cycle_detection or topological_sort:
            dag=True
        if euler_tour:
            et=[]
        if linked_components:
            lc=[]
        if lowlink:
            order=[None]*self.V
            ll=[None]*self.V
            idx=0
        if parents or cycle_detection or lowlink or subtree_size:
            ps=[None]*self.V
        if postorder or topological_sort:
            post=[]
        if preorder:
            pre=[]
        if subtree_size:
            ss=[1]*self.V
        if unweighted_dist or bipartite_graph:
            uwd=[self.inf]*self.V
            uwd[s]=0
        if weighted_dist:
            wd=[self.inf]*self.V
            wd[s]=0
        stack=[(s,0)] if self.weighted else [s]
        while stack:
            if self.weighted:
                x,d=stack.pop()
            else:
                x=stack.pop()
            if not seen[x]:
                seen[x]=True
                stack.append((x,d) if self.weighted else x)
                if euler_tour:
                    et.append(x)
                if linked_components:
                    lc.append(x)
                if lowlink:
                    order[x]=idx
                    ll[x]=idx
                    idx+=1
                if preorder:
                    pre.append(x)
                for y in self.graph[x]:
                    if self.weighted:
                        y,d=y
                    if not seen[y]:
                        stack.append((y,d) if self.weighted else y)
                        if parents or cycle_detection or lowlink or subtree_size:
                            ps[y]=x
                        if unweighted_dist or bipartite_graph:
                            uwd[y]=uwd[x]+1
                        if weighted_dist:
                            wd[y]=wd[x]+d
                    elif not finished[y]:
                        if (directed_acyclic or cycle_detection or topological_sort) and dag:
                            dag=False
                            if cycle_detection:
                                cd=(y,x)
            elif not finished[x]:
                finished[x]=True
                if euler_tour:
                    et.append(~x)
                if lowlink:
                    bl=True
                    for y in self.graph[x]:
                        if self.weighted:
                            y,d=y
                        if ps[x]==y and bl:
                            bl=False
                            continue
                        ll[x]=min(ll[x],order[y])
                    if x!=s:
                        ll[ps[x]]=min(ll[ps[x]],ll[x])
                if postorder or topological_sort:
                    post.append(x)
                if subtree_size:
                    for y in self.graph[x]:
                        if self.weighted:
                            y,d=y
                        if y==ps[x]:
                            continue
                        ss[x]+=ss[y]
        if bipartite_graph:
            bg=[[],[]]
            for tpl in self.edges:
                x,y=tpl[:2] if self.weighted else tpl
                if uwd[x]==self.inf or uwd[y]==self.inf:
                    continue
                if not uwd[x]%2^uwd[y]%2:
                    bg=False
                    break
            else:
                for x in range(self.V):
                    if uwd[x]==self.inf:
                        continue
                    bg[uwd[x]%2].append(x)
        retu=()
        if bipartite_graph:
            retu+=(bg,)
        if cycle_detection:
            if dag:
                cd=[]
            else:
                y,x=cd
                cd=self.Route_Restoration(y,x,ps)
            retu+=(cd,)
        if directed_acyclic:
            retu+=(dag,)
        if euler_tour:
            retu+=(et,)
        if linked_components:
            retu+=(lc,)
        if lowlink:
            retu=(ll,)
        if parents:
            retu+=(ps,)
        if postorder:
            retu+=(post,)
        if preorder:
            retu+=(pre,)
        if subtree_size:
            retu+=(ss,)
        if topological_sort:
            if dag:
                tp_sort=post[::-1]
            else:
                tp_sort=[]
            retu+=(tp_sort,)
        if unweighted_dist:
            retu+=(uwd,)
        if weighted_dist:
            retu+=(wd,)
        if len(retu)==1:
            retu=retu[0]
        return retu

class Segment_Tree:
    def __init__(self,N,f,e,lst=None,dynamic=False):
        self.f=f
        self.e=e
        self.N=N
        if dynamic:
            self.segment_tree=defaultdict(lambda:self.e)
        else:
            if lst==None:
                self.segment_tree=[self.e]*2*self.N
            else:
                assert len(lst)<=self.N
                self.segment_tree=[self.e]*self.N+[x for x in lst]+[self.e]*(N-len(lst))
                for i in range(self.N-1,0,-1):
                    self.segment_tree[i]=self.f(self.segment_tree[i<<1],self.segment_tree[i<<1|1])

    def __getitem__(self,i):
        if type(i)==int:
            if -self.N<=i<0:
                return self.segment_tree[i+self.N*2]
            elif 0<=i<self.N:
                return self.segment_tree[i+self.N]
            else:
                raise IndexError("list index out of range")
        else:
            a,b,c=i.start,i.stop,i.step
            if a==None:
                a=self.N
            else:
                a+=self.N
            if b==None:
                b=self.N*2
            else:
                b+=self.N
            return self.segment_tree[slice(a,b,c)]

    def __setitem__(self,i,x):
        if -self.N<=i<0:
            i+=self.N*2
        elif 0<=i<self.N:
            i+=self.N
        else:
            raise IndexError("list index out of range")
        self.segment_tree[i]=x
        while i>1:
            i>>= 1
            self.segment_tree[i]=self.f(self.segment_tree[i<<1],self.segment_tree[i<<1|1])

    def Build(self,lst):
        for i,x in enumerate(lst,self.N):
            self.segment_tree[i]=x
        for i in range(self.N-1,0,-1):
            self.segment_tree[i]=self.f(self.segment_tree[i<<1],self.segment_tree[i<<1|1])

    def Fold(self,L=None,R=None):
        if L==None:
            L=self.N
        else:
            L+=self.N
        if R==None:
            R=self.N*2
        else:
            R+=self.N
        vL=self.e
        vR=self.e
        while L<R:
            if L&1:
                vL=self.f(vL,self.segment_tree[L])
                L+=1
            if R&1:
                R-=1
                vR=self.f(self.segment_tree[R],vR)
            L>>=1
            R>>=1
        return self.f(vL,vR)

    def Fold_Index(self,L=None,R=None):
        if L==None:
            L=self.N
        else:
            L+=self.N
        if R==None:
            R=self.N*2
        else:
            R+=self.N
        if L==R:
            return None
        x=self.Fold(L-self.N,R-self.N)
        while L<R:
            if L&1:
                if self.segment_tree[L]==x:
                    i=L
                    break
                L+=1
            if R&1:
                R-=1
                if self.segment_tree[R]==x:
                    i=R
                    break
            L>>=1
            R>>=1
        while i<self.N:
            if self.segment_tree[i]==self.segment_tree[i<<1]:
                i<<=1
            else:
                i<<=1
                i|=1
        i-=self.N
        return i

    def Bisect_Right(self,L=None,f=None):
        if L==self.N:
            return self.N
        if L==None:
            L=0
        L+=self.N
        vl=self.e
        vr=self.e
        l,r=L,self.N*2
        while l<r:
            if l&1:
                vl=self.f(vl,self.segment_tree[l])
                l+=1
            if r&1:
                r-=1
                vr=self.f(self.segment_tree[r],vr)
            l>>=1
            r>>=1
        if f(self.f(vl,vr)):
            return self.N
        v=self.e
        while True:
            while L%2==0:
                L>>=1
            vv=self.f(v,self.segment_tree[L])
            if f(vv):
                v=vv
                L+=1
            else:
                while L<self.N:
                    L<<=1
                    vv=self.f(v,self.segment_tree[L])
                    if f(vv):
                        v=vv
                        L+=1
                return L-self.N

    def Bisect_Left(self,R=None,f=None):
        if R==0:
            return 0
        if R==None:
            R=self.N
        R+=self.N
        vl=self.e
        vr=self.e
        l,r=self.N,R
        while l<r:
            if l&1:
                vl=self.f(vl,self.segment_tree[l])
                l+=1
            if r&1:
                r-=1
                vr=self.f(self.segment_tree[r],vr)
            l>>=1
            r>>=1
        if f(self.f(vl,vr)):
            return 0
        v=self.e
        while True:
            R-=1
            while R>1 and R%2:
                R>>=1
            vv=self.f(self.segment_tree[R],v)
            if f(vv):
                v=vv
            else:
                while R<self.N:
                    R=2*R+1
                    vv=self.f(self.segment_tree[R],v)
                    if f(vv):
                        v=vv
                        R-=1
                return R+1-self.N

    def __str__(self):
        return "["+", ".join(map(str,self.segment_tree[self.N:]))+"]"

N=int(readline())
S=[readline().rstrip() for n in range(N)]
SS=[list(s) for s in S]
Q=int(readline())
query=[]
for q in range(Q):
    lst=readline().split()
    if lst[0]=="1":
        _,x,c=lst
        x=int(x)-1
        SS[x]+=[c]
        query.append((1,x,c))
    else:
        _,x=lst
        x=int(x)-1
        query.append((2,x))
Tr=Trie(0)
for s in SS:
    Tr[s]=0
nodes=Tr.Nodes()
edges=[]
le=len(nodes)
for n0 in nodes:
    for x,n1 in n0.children.items():
        edges.append((n0.i,n1.i))
G=Graph(le,edges=edges)
tour=G.SIV_DFS(0,euler_tour=True)
idx_in=[None]*le
idx_out=[None]*le
for i in range(2*le):
    if tour[i]>=0:
        idx_in[tour[i]]=i
    else:
        idx_out[~tour[i]]=i
ST=Segment_Tree(2*le,lambda x,y:x+y,0)
node=[Tr.root]*N
for i in range(N):
    for s in S[i]:
        node[i]=node[i].children[s]
        ST[idx_in[node[i].i]]+=1
        ST[idx_out[node[i].i]]-=1
for tpl in query:
    if tpl[0]==1:
        _,x,c=tpl
        node[x]=node[x][c]
        i=node[x].i
        ST[idx_in[i]]+=1
        ST[idx_out[i]]-=1
    else:
        _,x=tpl
        i=node[x].i
        ans=ST.Fold(0,idx_in[i]+1)
        print(ans)

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結果

テストケース

ソースコード