結果
問題 | No.1731 Product of Subsequence |
ユーザー | brthyyjp |
提出日時 | 2021-11-05 22:16:54 |
言語 | PyPy3 (7.3.15) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,169 bytes |
コンパイル時間 | 322 ms |
コンパイル使用メモリ | 82,256 KB |
実行使用メモリ | 123,960 KB |
最終ジャッジ日時 | 2024-11-06 13:10:38 |
合計ジャッジ時間 | 6,831 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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 |
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testcase_00 | TLE | - |
testcase_01 | -- | - |
testcase_02 | -- | - |
testcase_03 | -- | - |
testcase_04 | -- | - |
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testcase_29 | -- | - |
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testcase_31 | -- | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
ソースコード
def gcd(a, b): while b: a, b = b, a % b return a def isPrimeMR(n): d = n - 1 d = d // (d & -d) L = [2] for a in L: t = d y = pow(a, t, n) if y == 1: continue while y != n - 1: y = (y * y) % n if y == 1 or t == n - 1: return 0 t <<= 1 return 1 def findFactorRho(n): m = 1 << n.bit_length() // 8 for c in range(1, 99): f = lambda x: (x * x + c) % n y, r, q, g = 2, 1, 1, 1 while g == 1: x = y for i in range(r): y = f(y) k = 0 while k < r and g == 1: ys = y for i in range(min(m, r - k)): y = f(y) q = q * abs(x - y) % n g = gcd(q, n) k += m r <<= 1 if g == n: g = 1 while g == 1: ys = f(ys) g = gcd(abs(x - ys), n) if g < n: if isPrimeMR(g): return g elif isPrimeMR(n // g): return n // g return findFactorRho(g) def primeFactor(n): i = 2 ret = {} rhoFlg = 0 while i*i <= n: k = 0 while n % i == 0: n //= i k += 1 if k: ret[i] = k i += 1 + i % 2 if i == 101 and n >= 2 ** 20: while n > 1: if isPrimeMR(n): ret[n], n = 1, 1 else: rhoFlg = 1 j = findFactorRho(n) k = 0 while n % j == 0: n //= j k += 1 ret[j] = k if n > 1: ret[n] = 1 if rhoFlg: ret = {x: ret[x] for x in sorted(ret)} return ret import sys import io, os input = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline def main(): n, k = map(int, input().split()) A = list(map(int, input().split())) mod = 10**9+7 from collections import defaultdict d = primeFactor(k) toid = {} max_q = {} i = 0 for k, v in d.items(): toid[k] = i max_q[i] = v i += 1 m = len(toid) dp = defaultdict(lambda: 0) dp[tuple([0]*m)] = 1 for a in A: nx = defaultdict(lambda: 0) for k, v in dp.items(): nx[k] += v nx[k] %= mod if a == 1: for k, v in dp.items(): nx[k] += v nx[k] %= mod else: c = primeFactor(a) t = [0]*m for p, q in c.items(): if p not in toid: continue else: t[toid[p]] += q for k, v in dp.items(): nk = [0]*m for i, (q, nq) in enumerate(zip(k, t)): nk[i] = min(max_q[i], q+nq) nk = tuple(nk) nx[nk] += v nx[nk] %= mod dp = nx target = [0]*m for i, v in max_q.items(): target[i] = v target = tuple(target) print(dp[target]%mod) if __name__ == '__main__': main()