結果

問題 No.719 Coprime
ユーザー mkawa2mkawa2
提出日時 2022-01-25 23:43:48
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 184 ms / 3,000 ms
コード長 2,411 bytes
コンパイル時間 490 ms
コンパイル使用メモリ 87,044 KB
実行使用メモリ 81,800 KB
最終ジャッジ日時 2023-08-22 19:26:49
合計ジャッジ時間 8,836 ms
ジャッジサーバーID
(参考情報)
judge15 / judge13
このコードへのチャレンジ
(要ログイン)

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 90 ms
71,564 KB
testcase_01 AC 88 ms
71,752 KB
testcase_02 AC 90 ms
71,720 KB
testcase_03 AC 89 ms
71,600 KB
testcase_04 AC 90 ms
71,832 KB
testcase_05 AC 89 ms
71,644 KB
testcase_06 AC 89 ms
71,824 KB
testcase_07 AC 90 ms
71,572 KB
testcase_08 AC 89 ms
71,836 KB
testcase_09 AC 87 ms
71,596 KB
testcase_10 AC 88 ms
71,412 KB
testcase_11 AC 88 ms
71,880 KB
testcase_12 AC 87 ms
71,836 KB
testcase_13 AC 89 ms
71,640 KB
testcase_14 AC 90 ms
71,544 KB
testcase_15 AC 89 ms
71,580 KB
testcase_16 AC 90 ms
71,544 KB
testcase_17 AC 88 ms
71,820 KB
testcase_18 AC 89 ms
71,416 KB
testcase_19 AC 90 ms
71,644 KB
testcase_20 AC 89 ms
71,528 KB
testcase_21 AC 93 ms
71,828 KB
testcase_22 AC 90 ms
71,392 KB
testcase_23 AC 90 ms
71,704 KB
testcase_24 AC 92 ms
71,840 KB
testcase_25 AC 91 ms
71,832 KB
testcase_26 AC 91 ms
71,652 KB
testcase_27 AC 90 ms
71,768 KB
testcase_28 AC 91 ms
71,840 KB
testcase_29 AC 89 ms
71,776 KB
testcase_30 AC 92 ms
71,668 KB
testcase_31 AC 91 ms
71,564 KB
testcase_32 AC 91 ms
71,548 KB
testcase_33 AC 91 ms
71,580 KB
testcase_34 AC 90 ms
71,712 KB
testcase_35 AC 90 ms
71,824 KB
testcase_36 AC 91 ms
71,416 KB
testcase_37 AC 90 ms
71,600 KB
testcase_38 AC 90 ms
71,768 KB
testcase_39 AC 90 ms
71,568 KB
testcase_40 AC 90 ms
71,576 KB
testcase_41 AC 91 ms
71,548 KB
testcase_42 AC 91 ms
71,724 KB
testcase_43 AC 100 ms
76,972 KB
testcase_44 AC 96 ms
76,876 KB
testcase_45 AC 95 ms
76,996 KB
testcase_46 AC 102 ms
77,476 KB
testcase_47 AC 100 ms
77,428 KB
testcase_48 AC 101 ms
77,536 KB
testcase_49 AC 102 ms
77,408 KB
testcase_50 AC 103 ms
77,392 KB
testcase_51 AC 102 ms
77,496 KB
testcase_52 AC 105 ms
77,496 KB
testcase_53 AC 111 ms
77,440 KB
testcase_54 AC 131 ms
78,116 KB
testcase_55 AC 129 ms
78,036 KB
testcase_56 AC 183 ms
80,880 KB
testcase_57 AC 171 ms
80,964 KB
testcase_58 AC 183 ms
81,480 KB
testcase_59 AC 183 ms
81,800 KB
testcase_60 AC 184 ms
81,708 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

import sys

# sys.setrecursionlimit(200005)
int1 = lambda x: int(x)-1
pDB = lambda *x: print(*x, end="\n", file=sys.stderr)
p2D = lambda x: print(*x, sep="\n", end="\n\n", file=sys.stderr)
def II(): return int(sys.stdin.readline())
def LI(): return list(map(int, sys.stdin.readline().split()))
def LLI(rows_number): return [LI() for _ in range(rows_number)]
def LI1(): return list(map(int1, sys.stdin.readline().split()))
def LLI1(rows_number): return [LI1() for _ in range(rows_number)]
def SI(): return sys.stdin.readline().rstrip()
dij = [(0, 1), (-1, 0), (0, -1), (1, 0)]
# dij = [(0, 1), (-1, 0), (0, -1), (1, 0), (1, 1), (1, -1), (-1, 1), (-1, -1)]
# inf = (1 << 63)-1
inf = (1 << 31)-1
md = 10**9+7
# md = 998244353

class Sieve:
    def __init__(self, n):
        self.plist = [2]  # n以下の素数のリスト
        min_prime_factor = [2, 0]*(n//2+1)
        for x in range(3, n+1, 2):
            if min_prime_factor[x] == 0:
                min_prime_factor[x] = x
                self.plist.append(x)
                if x**2 > n: continue
                for y in range(x**2, n+1, 2*x):
                    if min_prime_factor[y] == 0:
                        min_prime_factor[y] = x
        self.min_prime_factor = min_prime_factor

    def isprime(self, x):
        return self.min_prime_factor[x] == x

    # これが素因数分解(prime factorization)
    def pfct(self, x):
        pp, ee = [], []
        while x > 1:
            mpf = self.min_prime_factor[x]
            if pp and mpf == pp[-1]:
                ee[-1] += 1
            else:
                pp.append(mpf)
                ee.append(1)
            x //= mpf
        return pp

from collections import defaultdict

n = II()
sv = Sieve(n)

ptoi = {p: i for i, p in enumerate(sv.plist)}

ptoa = defaultdict(list)
aa = [1]*(n+1)
for p in sv.plist[::-1]:
    for i in range(p, n+1, p):
        if aa[i]:
            ptoa[p].append(i)
            aa[i] = 0
# pDB(ptoa)

dp = defaultdict(int)
dp[0] = 0
for p in sv.plist:
    up = []
    for a in ptoa[p]:
        s = 0
        for pf in sv.pfct(a):
            if pf**2 < n:
                i = ptoi[pf]
                s |= 1 << i
        for ps, pv in dp.items():
            if s & ps: continue
            ns = ps | s
            nv = pv+a
            up.append((ns, nv))
    for s, v in up:
        dp[s] = max(dp[s], v)
    # pDB(dp)

ans = max(dp.values())
print(ans)
0