結果
| 問題 |
No.1142 XOR と XOR
|
| コンテスト | |
| ユーザー |
lam6er
|
| 提出日時 | 2025-04-15 23:50:50 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 1,353 bytes |
| コンパイル時間 | 187 ms |
| コンパイル使用メモリ | 82,352 KB |
| 実行使用メモリ | 154,652 KB |
| 最終ジャッジ日時 | 2025-04-15 23:52:39 |
| 合計ジャッジ時間 | 5,215 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 1 TLE * 1 -- * 23 |
ソースコード
MOD = 10**9 + 7
def main():
import sys
input = sys.stdin.read
data = input().split()
idx = 0
N = int(data[idx])
idx += 1
M = int(data[idx])
idx += 1
K = int(data[idx])
idx += 1
a = list(map(int, data[idx:idx+N]))
idx += N
b = list(map(int, data[idx:idx+M]))
idx += M
# Compute cnt_a for array a
count_a = [0] * 1024
count_a[0] = 1
current_xor = 0
cnt_a = [0] * 1024
for num in a:
current_xor ^= num
for x in range(1024):
if count_a[x]:
A = current_xor ^ x
cnt_a[A] = (cnt_a[A] + count_a[x]) % MOD
count_a[current_xor] = (count_a[current_xor] + 1) % MOD
# Compute cnt_b for array b
count_b = [0] * 1024
count_b[0] = 1
current_xor = 0
cnt_b = [0] * 1024
for num in b:
current_xor ^= num
for x in range(1024):
if count_b[x]:
B = current_xor ^ x
cnt_b[B] = (cnt_b[B] + count_b[x]) % MOD
count_b[current_xor] = (count_b[current_xor] + 1) % MOD
# Calculate the answer
ans = 0
for A in range(1024):
target = A ^ K
if target >= 1024:
continue
ans = (ans + cnt_a[A] * cnt_b[target]) % MOD
print(ans % MOD)
if __name__ == "__main__":
main()
lam6er