結果
| 問題 |
No.3038 シャッフルの再現
|
| コンテスト | |
| ユーザー |
gew1fw
|
| 提出日時 | 2025-06-12 20:39:31 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 2,077 bytes |
| コンパイル時間 | 175 ms |
| コンパイル使用メモリ | 81,856 KB |
| 実行使用メモリ | 67,240 KB |
| 最終ジャッジ日時 | 2025-06-12 20:39:35 |
| 合計ジャッジ時間 | 2,541 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 | RE * 1 |
| other | RE * 21 |
ソースコード
import sys
from collections import defaultdict
MOD = 10**9 + 7
def factorize(n):
factors = defaultdict(int)
while n % 2 == 0:
factors[2] += 1
n = n // 2
i = 3
while i * i <= n:
while n % i == 0:
factors[i] += 1
n = n // i
i += 2
if n > 1:
factors[n] += 1
return factors
def get_divisors(n):
if n == 0:
return []
factors = factorize(n)
divisors = [1]
for p, exp in factors.items():
current_length = len(divisors)
current_power = 1
for _ in range(exp):
current_power *= p
for d in divisors[:current_length]:
divisors.append(d * current_power)
divisors = sorted(divisors)
return divisors
def fib_pair(n, m):
if n == 0:
return (0, 1)
a, b = fib_pair(n >> 1, m)
c = (a * ((2 * b - a) % m)) % m
d = (a * a + b * b) % m
if n & 1:
return (d, (c + d) % m)
else:
return (c, d)
def compute_pisano(p):
if p == 2:
return 3
if p == 5:
return 20
legendre = pow(5, (p - 1) // 2, p)
if legendre == 1:
candidate = p - 1
else:
candidate = 2 * (p + 1)
divisors = get_divisors(candidate)
for d in divisors:
a, b = fib_pair(d, p)
if a == 0 and b == 1:
return d
return candidate
def main():
input = sys.stdin.read().split()
ptr = 0
n = int(input[ptr])
ptr += 1
max_exponents = defaultdict(int)
for _ in range(n):
p = int(input[ptr])
ptr += 1
k = int(input[ptr])
ptr += 1
pi_p = compute_pisano(p)
factors = factorize(pi_p)
if p in factors:
factors[p] += (k - 1)
else:
factors[p] = (k - 1)
for q, e in factors.items():
if e > max_exponents[q]:
max_exponents[q] = e
result = 1
for q, e in max_exponents.items():
result = (result * pow(q, e, MOD)) % MOD
print(result)
if __name__ == "__main__":
main()
gew1fw