結果

問題 No.1698 Face to Face
ユーザー eSeFeSeF
提出日時 2021-09-18 16:29:24
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 4,304 ms / 5,000 ms
コード長 4,171 bytes
コンパイル時間 919 ms
コンパイル使用メモリ 87,188 KB
実行使用メモリ 225,176 KB
最終ジャッジ日時 2023-09-26 16:00:12
合計ジャッジ時間 95,482 ms
ジャッジサーバーID
（参考情報） 		judge13 / judge12
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 77 ms
71,272 KB
testcase_01 AC 79 ms
71,296 KB
testcase_02 AC 75 ms
71,340 KB
testcase_03 AC 845 ms
189,700 KB
testcase_04 AC 1,217 ms
203,672 KB
testcase_05 AC 3,216 ms
220,364 KB
testcase_06 AC 3,049 ms
219,272 KB
testcase_07 AC 3,164 ms
225,176 KB
testcase_08 AC 3,108 ms
221,696 KB
testcase_09 AC 3,018 ms
224,856 KB
testcase_10 AC 1,146 ms
206,048 KB
testcase_11 AC 3,551 ms
217,736 KB
testcase_12 AC 3,840 ms
220,552 KB
testcase_13 AC 71 ms
71,420 KB
testcase_14 AC 71 ms
71,416 KB
testcase_15 AC 4,016 ms
216,332 KB
testcase_16 AC 4,253 ms
220,344 KB
testcase_17 AC 4,268 ms
220,024 KB
testcase_18 AC 3,590 ms
201,024 KB
testcase_19 AC 3,740 ms
196,860 KB
testcase_20 AC 3,676 ms
194,180 KB
testcase_21 AC 2,289 ms
147,432 KB
testcase_22 AC 2,153 ms
137,052 KB
testcase_23 AC 961 ms
98,164 KB
testcase_24 AC 2,562 ms
157,132 KB
testcase_25 AC 4,304 ms
214,740 KB
testcase_26 AC 697 ms
91,272 KB
testcase_27 AC 1,529 ms
118,444 KB
testcase_28 AC 1,624 ms
119,548 KB
testcase_29 AC 1,417 ms
112,876 KB
testcase_30 AC 2,609 ms
163,880 KB
testcase_31 AC 2,436 ms
150,432 KB
testcase_32 AC 2,938 ms
176,780 KB
testcase_33 AC 3,024 ms
179,552 KB
testcase_34 AC 3,891 ms
212,236 KB
testcase_35 AC 76 ms
71,344 KB
testcase_36 AC 77 ms
71,160 KB
testcase_37 AC 73 ms
71,348 KB
testcase_38 AC 73 ms
71,564 KB
testcase_39 AC 76 ms
71,344 KB
testcase_40 AC 75 ms
71,344 KB
testcase_41 AC 78 ms
71,352 KB
testcase_42 AC 76 ms
71,424 KB
testcase_43 AC 76 ms
71,324 KB
testcase_44 AC 75 ms
71,344 KB
testcase_45 AC 2,336 ms
215,116 KB
testcase_46 AC 2,551 ms
217,604 KB
testcase_47 AC 2,457 ms
215,444 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

diff # 

class UnionFind_AB:
    def __init__(self, N):
        self.p = [-1] * N
        self.L = [i for i in range(N)]
        self.R = [i for i in range(N)]
 
    def root(self, x):
        while self.p[x] >= 0:
            x = self.p[x]
        return x
 
    def same(self, x, y):
        return self.root(x) == self.root(y)
 
    def unite(self, x, y):
        x = self.root(x)
        y = self.root(y)
        if x == y:
            return
        p = self.p
        if p[x] > p[y]:
            p[y] += p[x]
            p[x] = y
            self.L[y] = min(self.L[y],self.L[x])
            self.R[y] = max(self.R[y],self.R[x])
        else:
            p[x] += p[y]
            p[y] = x
            self.L[x] = min(self.L[y],self.L[x])
            self.R[x] = max(self.R[y],self.R[x])
 
    def size(self, x):
        return -self.p[self.root(x)]
    def left(self, v):
        return self.L[self.root(v)]
    def right(self,v):
        return self.R[self.root(v)]

class UnionFind_IDX:
    def __init__(self, N):
        self.p = [-1] * N
        self.num_pair = [0] * N
        self.score = 0
 
    def root(self, x):
        while self.p[x] >= 0:
            x = self.p[x]
        return x
 
    def same(self, x, y):
        return self.root(x) == self.root(y)
 
    def unite(self, x, y):
        x = self.root(x)
        y = self.root(y)
        if x == y:
            return
        self.score -= self.sub_score(x) + self.sub_score(y)
        p = self.p
        if p[x] > p[y]:
            p[y] += p[x]
            p[x] = y
            self.num_pair[y] += self.num_pair[x]
            self.score += self.sub_score(y)
        else:
            p[x] += p[y]
            p[y] = x
            self.num_pair[x] += self.num_pair[y]
            self.score += self.sub_score(x)

    def add_pair(self,v):
        self.score -= self.sub_score(self.root(v))
        self.num_pair[self.root(v)]+=1
        self.score += self.sub_score(self.root(v))
    def size(self, x):
        return -self.p[self.root(x)]
    def sub_score(self,v):
        return min(-self.p[self.root(v)],self.num_pair[self.root(v)])

import sys
input = sys.stdin.readline

def main():
    n = int(input())
    a = list(map(int,input().split()))
    b = list(map(int,input().split()))
    z = list(map(int,input().split()))

    ida = [-1]*n
    idb = [-1]*n
    for i in range(n):
        a[i]-=1
        b[i]-=1
        z[i]-=1
        ida[a[i]]=i
        idb[b[i]]=i

    pos_left = [-1]*n
    l = [-1]*n
    r = [n]*n

    mid = [[]for i in range(n)]

    for _ in range(17):
        for i in range(n):
            if r[i]-l[i]>1:
                mid[(l[i]+r[i])//2].append(i)
        
        ufa = UnionFind_AB(n)
        ufb = UnionFind_AB(n)

        for k in range(n):
            ia = ida[k]
            ib = idb[k]
            if 0<ia and a[ia-1]<=k:
                ufa.unite(ia-1,ia)
            if ia+1<n and a[ia+1]<=k:
                ufa.unite(ia,ia+1)
            if 0<ib and b[ib-1]<=k:
                ufb.unite(ib-1,ib)
            if ib+1<n and b[ib+1]<=k:
                ufb.unite(ib,ib+1)
        
            for j in mid[k]:
                la, ra = ufa.left(ida[j]),ufa.right(ida[j])
                lb, rb = ufb.left(idb[z[j]]),ufb.right(idb[z[j]])

                if ra < lb or rb < la:
                    l[j] = k
                else:
                    r[j] = k
                    pos_left[j] = max(la,lb)
            mid[k].clear()

    for i in range(n):
        mid[r[i]].append(i)

    less_k = [0]*n
    ufi = UnionFind_IDX(n)
    ans = []
    for k in range(n):
        ia, ib = ida[k],idb[k]
        less_k[ia]+=1
        less_k[ib]+=1
        if less_k[ia]==2:
            if 0<ia and less_k[ia-1]==2:
                ufi.unite(ia-1,ia)
            if ia+1<n and less_k[ia+1]==2:
                ufi.unite(ia,ia+1)
        if less_k[ib]==2:
            if 0<ib and less_k[ib-1]==2:
                ufi.unite(ib-1,ib)
            if ib+1<n and less_k[ib+1]==2:
                ufi.unite(ib,ib+1)
        for x in mid[k]:
            ufi.add_pair(pos_left[x])
        ans.append(ufi.score)

    print("\n".join(map(str,ans)))

if __name__=='__main__':
    main()
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