結果

問題 No.1209 XOR Into You
ユーザー NatsubiSoganNatsubiSogan
提出日時 2020-08-31 18:21:04
言語 Python3
(3.12.2 + numpy 1.26.4 + scipy 1.12.0)
結果
AC  
実行時間 1,684 ms / 2,000 ms
コード長 2,391 bytes
コンパイル時間 92 ms
コンパイル使用メモリ 13,056 KB
実行使用メモリ 84,744 KB
最終ジャッジ日時 2024-04-28 06:50:06
合計ジャッジ時間 61,524 ms
ジャッジサーバーID
（参考情報） 		judge2 / 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 537 ms
44,580 KB
testcase_01 AC 537 ms
44,268 KB
testcase_02 AC 550 ms
44,540 KB
testcase_03 AC 536 ms
44,936 KB
testcase_04 AC 1,074 ms
65,488 KB
testcase_05 AC 1,087 ms
65,472 KB
testcase_06 AC 1,261 ms
84,524 KB
testcase_07 AC 1,551 ms
75,924 KB
testcase_08 AC 1,435 ms
73,220 KB
testcase_09 AC 1,429 ms
72,844 KB
testcase_10 AC 1,247 ms
67,984 KB
testcase_11 AC 1,438 ms
72,492 KB
testcase_12 AC 1,374 ms
70,636 KB
testcase_13 AC 1,492 ms
74,544 KB
testcase_14 AC 1,361 ms
70,040 KB
testcase_15 AC 1,413 ms
71,324 KB
testcase_16 AC 1,370 ms
70,900 KB
testcase_17 AC 1,328 ms
69,776 KB
testcase_18 AC 1,684 ms
82,804 KB
testcase_19 AC 1,373 ms
70,860 KB
testcase_20 AC 1,483 ms
74,372 KB
testcase_21 AC 1,207 ms
67,600 KB
testcase_22 AC 1,599 ms
84,460 KB
testcase_23 AC 1,609 ms
84,580 KB
testcase_24 AC 1,597 ms
84,600 KB
testcase_25 AC 1,642 ms
84,476 KB
testcase_26 AC 1,658 ms
84,744 KB
testcase_27 AC 1,671 ms
84,620 KB
testcase_28 AC 1,652 ms
84,368 KB
testcase_29 AC 1,653 ms
84,480 KB
testcase_30 AC 1,648 ms
84,364 KB
testcase_31 AC 1,566 ms
67,848 KB
testcase_32 AC 1,566 ms
67,916 KB
testcase_33 AC 1,563 ms
67,940 KB
testcase_34 AC 1,568 ms
67,932 KB
testcase_35 AC 1,568 ms
67,912 KB
testcase_36 AC 1,584 ms
67,948 KB
testcase_37 AC 1,491 ms
70,344 KB
testcase_38 AC 1,430 ms
75,520 KB
testcase_39 AC 1,323 ms
72,468 KB
testcase_40 AC 1,617 ms
84,352 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 # 

n = int(input())
import math
import numpy as np
import decimal
import collections
import itertools
import sys
def find(x):
    if par[x] < 0:
        return x
    else:
        par[x] = find(par[x])
        return par[x]
def unite(x, y):
    p = find(x)
    q = find(y)
    if p == q:
        return None
    if p > q:
        p,q = q,p
    par[p] += par[q]
    par[q] = p
def same(x, y):
    return find(x) == find(y)
def size(x):
    return -par[find(x)]
par = [-1 for i in range(n)]
def prime_numbers(x):
    if x < 2:
        return []
    prime_numbers = [i for i in range(x)]
    prime_numbers[1] = 0
    for prime_number in prime_numbers:
        if prime_number > math.sqrt(x):
            break
        if prime_number == 0:
            continue
        for composite_number in range(2 * prime_number, x, prime_number):
            prime_numbers[composite_number] = 0
    return [prime_number for prime_number in prime_numbers if prime_number != 0]
def is_prime(x):
    if x < 2:
        return False
    if x == 2 or x == 3 or x == 5:
        return True
    if x % 2 == 0 or x % 3 == 0 or x % 5 == 0:
        return False
    prime_number = 7
    difference = 4
    while prime_number <= math.sqrt(x):
        if x % prime_number == 0:
            return False
        prime_number += difference
        difference = 6 - difference
    return True
mod = 10 ** 9 + 7
def comb(n, r):
    if n < r:return 0
    if n < 0 or r < 0:return 0
    return fa[n] * fi[r] % mod * fi[n - r] % mod
fa = [1] * (n + 1)
fi = [1] * (n + 1)
for i in range(1, n + 1):
    fa[i] = fa[i - 1] * i % mod
    fi[i] = pow(fa[i], mod - 2, mod)
BIT = [0] * (n + 1)
def add(i, x):
    while i <= n:
        BIT[i] += x
        i += i & -i
def query(i):
    s = 0
    while i > 0:
        s += BIT[i]
        i -= i & -i
    return s
a = list(map(int, input().split())) 
b = list(map(int, input().split()))
a.append(0)
b.append(0)
if a[0] != b[0] or a[-2] != b[-2]:
    print(-1)
else:
    a2 = [a[i] ^ a[i + 1] for i in range(n)]
    b2 = [b[i] ^ b[i + 1] for i in range(n)]
    dic = {i: [] for i in b2}
    for i in range(n):
        dic[b2[i]].append(i)
    ans = 0
    for i in range(n - 1, -1, -1):
        if not a2[i] in dic or dic[a2[i]] == []:
            print(-1)
            exit()
        ans += query(dic[a2[i]][-1] + 1)
        add(dic[a2[i]][-1] + 1, 1)
        dic[a2[i]].pop()
    print(ans)
0