結果
問題 | No.308 素数は通れません |
ユーザー | anta |
提出日時 | 2015-12-01 01:54:03 |
言語 | PyPy3 (7.3.15) |
結果 |
RE
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 1,555 bytes |
コンパイル時間 | 365 ms |
コンパイル使用メモリ | 81,992 KB |
実行使用メモリ | 89,052 KB |
最終ジャッジ日時 | 2024-05-05 18:16:41 |
合計ジャッジ時間 | 17,064 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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 | RE | - |
testcase_01 | RE | - |
testcase_02 | RE | - |
testcase_03 | RE | - |
testcase_04 | RE | - |
testcase_05 | RE | - |
testcase_06 | RE | - |
testcase_07 | RE | - |
testcase_08 | RE | - |
testcase_09 | RE | - |
testcase_10 | RE | - |
testcase_11 | RE | - |
testcase_12 | RE | - |
testcase_13 | RE | - |
testcase_14 | RE | - |
testcase_15 | RE | - |
testcase_16 | RE | - |
testcase_17 | RE | - |
testcase_18 | RE | - |
testcase_19 | RE | - |
testcase_20 | RE | - |
testcase_21 | RE | - |
testcase_22 | RE | - |
testcase_23 | RE | - |
testcase_24 | RE | - |
testcase_25 | RE | - |
testcase_26 | RE | - |
testcase_27 | RE | - |
testcase_28 | RE | - |
testcase_29 | RE | - |
testcase_30 | RE | - |
testcase_31 | RE | - |
testcase_32 | RE | - |
testcase_33 | RE | - |
testcase_34 | RE | - |
testcase_35 | RE | - |
testcase_36 | RE | - |
testcase_37 | RE | - |
testcase_38 | RE | - |
testcase_39 | RE | - |
testcase_40 | RE | - |
testcase_41 | RE | - |
testcase_42 | RE | - |
testcase_43 | RE | - |
testcase_44 | RE | - |
testcase_45 | RE | - |
testcase_46 | RE | - |
testcase_47 | RE | - |
testcase_48 | RE | - |
testcase_49 | RE | - |
testcase_50 | RE | - |
testcase_51 | RE | - |
testcase_52 | RE | - |
testcase_53 | RE | - |
testcase_54 | RE | - |
testcase_55 | RE | - |
testcase_56 | RE | - |
testcase_57 | RE | - |
testcase_58 | RE | - |
testcase_59 | RE | - |
testcase_60 | RE | - |
testcase_61 | RE | - |
testcase_62 | RE | - |
testcase_63 | RE | - |
testcase_64 | RE | - |
testcase_65 | RE | - |
testcase_66 | RE | - |
testcase_67 | RE | - |
testcase_68 | RE | - |
testcase_69 | RE | - |
testcase_70 | RE | - |
testcase_71 | RE | - |
testcase_72 | RE | - |
testcase_73 | RE | - |
testcase_74 | RE | - |
testcase_75 | RE | - |
testcase_76 | RE | - |
testcase_77 | RE | - |
testcase_78 | RE | - |
testcase_79 | RE | - |
testcase_80 | RE | - |
testcase_81 | RE | - |
testcase_82 | RE | - |
testcase_83 | RE | - |
testcase_84 | RE | - |
testcase_85 | RE | - |
testcase_86 | RE | - |
testcase_87 | RE | - |
testcase_88 | RE | - |
testcase_89 | RE | - |
testcase_90 | RE | - |
testcase_91 | RE | - |
testcase_92 | RE | - |
testcase_93 | RE | - |
testcase_94 | RE | - |
testcase_95 | RE | - |
testcase_96 | RE | - |
testcase_97 | RE | - |
testcase_98 | RE | - |
testcase_99 | RE | - |
testcase_100 | RE | - |
testcase_101 | RE | - |
testcase_102 | RE | - |
testcase_103 | RE | - |
testcase_104 | RE | - |
testcase_105 | RE | - |
testcase_106 | RE | - |
ソースコード
from fractions import gcd def suspect(a, s, d, n): x = pow(a, d, n) if x == 1: return True for r in range(s): if x == n - 1: return True x = x * x % n return False def isPrime(n): if n <= 1 or (n > 2 and n % 2 == 0): return False test = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37] d, s = n - 1, 0 while d % 2 == 0: s += 1 d //= 2 for a in test: if a >= n: break if not suspect(a, s, d, n): return False return True def getNext(n, W, N): i, j = (n - 1) // W, (n - 1) % W for dy, dx in [(0,1),(1,0),(0,-1),(-1,0)]: yy, xx = i + dy, j + dx if yy < 0 or xx < 0 or xx >= W: continue m = yy * W + xx + 1 if m > N or isPrime(m): continue yield m def search(W, N): ds = [d for d in range(0,W) if gcd(d,W) != 1] vis, dvis = {}, {} q = [1] vis[1] = True h = 0 while h < len(q): n = q[h] if n == N: return 0 h += 1 if gcd(n % W, W) > 1: if not n % W in dvis: # print("%d: %d, %d" % (W, n % W, n)) dvis[n % W] = True if len(dvis) == len(ds): break for m in getNext(n, W, N): if not m in vis: vis[m] = True q.append(m) return len(dvis) == len(ds) and 1 or 2 def search2(W, N): vis = {} q = [N] vis[N] = True h = 0 while h < len(q): n = q[h] if gcd(n % W, W) > 1: return True h += 1 for m in getNext(n, W, N): if not m in vis: vis[m] = True q.append(m) return False N = int(input()) W = 2 ok = False while True: if ok: break res = search(W, N) if res == 0: break if res == 1: if search2(W, N): break W += 1 print(W)