結果
問題 | No.308 素数は通れません |
ユーザー | chocorusk |
提出日時 | 2019-03-31 10:31:44 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 41 ms / 1,000 ms |
コード長 | 1,374 bytes |
コンパイル時間 | 194 ms |
コンパイル使用メモリ | 82,444 KB |
実行使用メモリ | 56,500 KB |
最終ジャッジ日時 | 2024-05-01 05:11:49 |
合計ジャッジ時間 | 6,722 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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 |
---|---|---|
testcase_00 | AC | 39 ms
54,368 KB |
testcase_01 | AC | 36 ms
54,500 KB |
testcase_02 | AC | 36 ms
55,144 KB |
testcase_03 | AC | 36 ms
54,820 KB |
testcase_04 | AC | 35 ms
55,044 KB |
testcase_05 | AC | 35 ms
55,652 KB |
testcase_06 | AC | 36 ms
54,552 KB |
testcase_07 | AC | 35 ms
54,368 KB |
testcase_08 | AC | 34 ms
55,336 KB |
testcase_09 | AC | 34 ms
54,912 KB |
testcase_10 | AC | 34 ms
55,416 KB |
testcase_11 | AC | 34 ms
55,788 KB |
testcase_12 | AC | 35 ms
54,760 KB |
testcase_13 | AC | 35 ms
55,172 KB |
testcase_14 | AC | 35 ms
55,020 KB |
testcase_15 | AC | 36 ms
55,892 KB |
testcase_16 | AC | 35 ms
55,060 KB |
testcase_17 | AC | 35 ms
54,992 KB |
testcase_18 | AC | 40 ms
55,632 KB |
testcase_19 | AC | 40 ms
54,520 KB |
testcase_20 | AC | 37 ms
55,124 KB |
testcase_21 | AC | 36 ms
56,268 KB |
testcase_22 | AC | 36 ms
54,576 KB |
testcase_23 | AC | 36 ms
55,108 KB |
testcase_24 | AC | 36 ms
55,968 KB |
testcase_25 | AC | 39 ms
55,512 KB |
testcase_26 | AC | 38 ms
56,152 KB |
testcase_27 | AC | 36 ms
54,312 KB |
testcase_28 | AC | 35 ms
55,352 KB |
testcase_29 | AC | 34 ms
54,620 KB |
testcase_30 | AC | 36 ms
55,056 KB |
testcase_31 | AC | 34 ms
55,224 KB |
testcase_32 | AC | 35 ms
55,724 KB |
testcase_33 | AC | 38 ms
55,380 KB |
testcase_34 | AC | 39 ms
54,952 KB |
testcase_35 | AC | 38 ms
55,024 KB |
testcase_36 | AC | 37 ms
55,460 KB |
testcase_37 | AC | 37 ms
55,500 KB |
testcase_38 | AC | 36 ms
54,696 KB |
testcase_39 | AC | 37 ms
54,824 KB |
testcase_40 | AC | 35 ms
54,868 KB |
testcase_41 | AC | 36 ms
55,772 KB |
testcase_42 | AC | 36 ms
55,984 KB |
testcase_43 | AC | 35 ms
55,192 KB |
testcase_44 | AC | 35 ms
55,276 KB |
testcase_45 | AC | 35 ms
55,168 KB |
testcase_46 | AC | 36 ms
55,860 KB |
testcase_47 | AC | 35 ms
55,800 KB |
testcase_48 | AC | 34 ms
54,972 KB |
testcase_49 | AC | 35 ms
55,176 KB |
testcase_50 | AC | 34 ms
54,972 KB |
testcase_51 | AC | 36 ms
54,764 KB |
testcase_52 | AC | 36 ms
55,392 KB |
testcase_53 | AC | 35 ms
55,632 KB |
testcase_54 | AC | 38 ms
55,416 KB |
testcase_55 | AC | 37 ms
54,452 KB |
testcase_56 | AC | 38 ms
55,000 KB |
testcase_57 | AC | 37 ms
54,620 KB |
testcase_58 | AC | 37 ms
55,568 KB |
testcase_59 | AC | 36 ms
54,756 KB |
testcase_60 | AC | 37 ms
55,764 KB |
testcase_61 | AC | 37 ms
55,696 KB |
testcase_62 | AC | 37 ms
55,172 KB |
testcase_63 | AC | 39 ms
54,816 KB |
testcase_64 | AC | 39 ms
55,820 KB |
testcase_65 | AC | 38 ms
55,084 KB |
testcase_66 | AC | 36 ms
54,436 KB |
testcase_67 | AC | 38 ms
54,572 KB |
testcase_68 | AC | 36 ms
55,268 KB |
testcase_69 | AC | 34 ms
56,196 KB |
testcase_70 | AC | 35 ms
54,760 KB |
testcase_71 | AC | 34 ms
55,464 KB |
testcase_72 | AC | 36 ms
55,272 KB |
testcase_73 | AC | 35 ms
55,460 KB |
testcase_74 | AC | 37 ms
56,128 KB |
testcase_75 | AC | 36 ms
55,580 KB |
testcase_76 | AC | 35 ms
54,840 KB |
testcase_77 | AC | 36 ms
56,500 KB |
testcase_78 | AC | 36 ms
54,884 KB |
testcase_79 | AC | 36 ms
55,136 KB |
testcase_80 | AC | 36 ms
54,620 KB |
testcase_81 | AC | 40 ms
54,780 KB |
testcase_82 | AC | 39 ms
55,828 KB |
testcase_83 | AC | 38 ms
54,728 KB |
testcase_84 | AC | 36 ms
55,032 KB |
testcase_85 | AC | 36 ms
54,308 KB |
testcase_86 | AC | 36 ms
55,368 KB |
testcase_87 | AC | 38 ms
55,264 KB |
testcase_88 | AC | 36 ms
55,244 KB |
testcase_89 | AC | 38 ms
55,676 KB |
testcase_90 | AC | 37 ms
55,288 KB |
testcase_91 | AC | 36 ms
54,700 KB |
testcase_92 | AC | 37 ms
55,788 KB |
testcase_93 | AC | 36 ms
56,180 KB |
testcase_94 | AC | 37 ms
55,892 KB |
testcase_95 | AC | 38 ms
55,000 KB |
testcase_96 | AC | 36 ms
56,120 KB |
testcase_97 | AC | 34 ms
54,840 KB |
testcase_98 | AC | 38 ms
54,360 KB |
testcase_99 | AC | 37 ms
54,548 KB |
testcase_100 | AC | 37 ms
55,452 KB |
testcase_101 | AC | 36 ms
55,396 KB |
testcase_102 | AC | 35 ms
54,456 KB |
testcase_103 | AC | 36 ms
55,148 KB |
testcase_104 | AC | 41 ms
54,308 KB |
testcase_105 | AC | 39 ms
54,764 KB |
testcase_106 | AC | 37 ms
55,640 KB |
ソースコード
import random import sys def is_prime(n): if n == 2: return True if n == 1 or n & 1 == 0: return False d = (n - 1) >> 1 while d & 1 == 0: d >>= 1 for k in range(10): a = random.randint(1, n - 1) t = d y = pow(a, t, n) while t != n - 1 and y != 1 and y != n - 1: y = (y * y) % n t <<= 1 if y != n - 1 and t & 1 == 0: return False return True n=int(input()) used=[False for i in range(102)] isprime=[False for i in range(102)] for i in range(3, 102, 2): isprime[i]=True isprime[2]=True for i in range(3, 102): if isprime[i]: for j in range(2*i, 102, i): isprime[j]=False def dfs(x, w): used[x]=True if x%w!=1 and (not used[x-1]) and (not isprime[x-1]): dfs(x-1, w) if x%w!=0 and x+1<=n and (not used[x+1]) and (not isprime[x+1]): dfs(x+1, w) if x>w and (not used[x-w]) and (not isprime[x-w]): dfs(x-w, w) if x+w<=n and (not used[x+w]) and (not isprime[x+w]): dfs(x+w, w) def solve(w): for i in range(1, n+1): used[i]=False dfs(1, w) return used[n] if n<=100: for i in range(3, n): if solve(i): print(i) sys.exit() else: if n%8!=1: print(8) elif not is_prime(n-8): print(8) else: print(14)