結果
問題 | No.2756 GCD Teleporter |
ユーザー | hato336 |
提出日時 | 2024-05-10 22:08:50 |
言語 | PyPy3 (7.3.15) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,668 bytes |
コンパイル時間 | 164 ms |
コンパイル使用メモリ | 82,780 KB |
実行使用メモリ | 161,056 KB |
最終ジャッジ日時 | 2024-12-20 05:49:59 |
合計ジャッジ時間 | 48,862 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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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 | 54 ms
66,888 KB |
testcase_01 | AC | 52 ms
68,816 KB |
testcase_02 | AC | 55 ms
68,116 KB |
testcase_03 | AC | 56 ms
67,520 KB |
testcase_04 | AC | 448 ms
89,572 KB |
testcase_05 | AC | 830 ms
96,760 KB |
testcase_06 | AC | 1,790 ms
115,136 KB |
testcase_07 | AC | 1,493 ms
109,300 KB |
testcase_08 | AC | 1,428 ms
108,132 KB |
testcase_09 | AC | 1,238 ms
104,964 KB |
testcase_10 | AC | 1,694 ms
113,164 KB |
testcase_11 | TLE | - |
testcase_12 | AC | 707 ms
93,224 KB |
testcase_13 | TLE | - |
testcase_14 | TLE | - |
testcase_15 | AC | 723 ms
93,760 KB |
testcase_16 | AC | 1,297 ms
102,072 KB |
testcase_17 | AC | 1,504 ms
105,160 KB |
testcase_18 | AC | 646 ms
92,456 KB |
testcase_19 | TLE | - |
testcase_20 | AC | 1,898 ms
113,552 KB |
testcase_21 | AC | 1,004 ms
98,504 KB |
testcase_22 | AC | 1,941 ms
114,624 KB |
testcase_23 | AC | 479 ms
89,836 KB |
testcase_24 | AC | 1,534 ms
108,316 KB |
testcase_25 | AC | 1,604 ms
107,824 KB |
testcase_26 | AC | 1,791 ms
112,404 KB |
testcase_27 | AC | 1,763 ms
114,516 KB |
testcase_28 | AC | 1,135 ms
98,804 KB |
testcase_29 | AC | 1,610 ms
104,576 KB |
testcase_30 | TLE | - |
testcase_31 | AC | 998 ms
95,728 KB |
testcase_32 | AC | 1,044 ms
110,212 KB |
testcase_33 | AC | 489 ms
94,604 KB |
testcase_34 | AC | 210 ms
86,948 KB |
testcase_35 | AC | 715 ms
110,572 KB |
testcase_36 | AC | 667 ms
110,776 KB |
testcase_37 | AC | 54 ms
68,028 KB |
testcase_38 | AC | 1,351 ms
117,788 KB |
testcase_39 | TLE | - |
ソースコード
import collections,sys def gcd(a, b): while a: a, b = b%a, a return b def is_prime(n): if n == 2: return 1 if n == 1 or n%2 == 0: return 0 m = n - 1 lsb = m & -m s = lsb.bit_length()-1 d = m // lsb test_numbers = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37] for a in test_numbers: if a == n: continue x = pow(a,d,n) r = 0 if x == 1: continue while x != m: x = pow(x,2,n) r += 1 if x == 1 or r == s: return 0 return 1 def find_prime_factor(n): if n%2 == 0: return 2 m = int(n**0.125)+1 for c in range(1,n): f = lambda a: (pow(a,2,n)+c)%n y = 0 g = q = r = 1 k = 0 while g == 1: x = y while k < 3*r//4: y = f(y) k += 1 while k < r and g == 1: ys = y for _ in range(min(m, r-k)): y = f(y) q = q*abs(x-y)%n g = gcd(q,n) k += m k = r r *= 2 if g == n: g = 1 y = ys while g == 1: y = f(y) g = gcd(abs(x-y),n) if g == n: continue if is_prime(g): return g elif is_prime(n//g): return n//g else: return find_prime_factor(g) def factorize(n): res = set() while not is_prime(n) and n > 1: # nが合成数である間nの素因数の探索を繰り返す p = find_prime_factor(n) s = 0 while n%p == 0: # nが素因数pで割れる間割り続け、出力に追加 n //= p s += 1 res.add(p) if n > 1: # n>1であればnは素数なので出力に追加 res.add(n) return res class UnionFind(): def __init__(self, n): self.n = n self.parents = [-1] * n def find(self, x): if self.parents[x] < 0: return x else: self.parents[x] = self.find(self.parents[x]) return self.parents[x] def union(self, x, y): x = self.find(x) y = self.find(y) if x == y: return if self.parents[x] > self.parents[y]: x, y = y, x self.parents[x] += self.parents[y] self.parents[y] = x def size(self, x): return -self.parents[self.find(x)] def same(self, x, y): return self.find(x) == self.find(y) def members(self, x): root = self.find(x) return [i for i in range(self.n) if self.find(i) == root] def roots(self): return [i for i, x in enumerate(self.parents) if x < 0] def group_count(self): return len(self.roots()) def all_group_members(self): group_members = collections.defaultdict(list) for member in range(self.n): group_members[self.find(member)].append(member) return group_members def __str__(self): return ''.join(f'{r}: {m}' for r, m in self.all_group_members().items()) n = int(input()) a = list(map(int,input().split())) ans = 10**18 uf = UnionFind(n) c = [[] for i in range(2*10**5+1)] for i in range(n): x = factorize(a[i]) for j in x: c[j].append(i) ans = min(ans,j) for i in range(len(c)): if not c[i]: continue for j in range(len(c[i])-1): uf.union(c[i][j],c[i][j+1]) uf.union(c[i][0],c[i][-1]) print(min(ans * uf.group_count() - ans,2*uf.group_count()))