結果

問題 No.2496 LCM between Permutations
ユーザー minimumminimum
提出日時 2023-10-06 22:22:17
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 249 ms / 2,000 ms
コード長 2,584 bytes
コンパイル時間 201 ms
コンパイル使用メモリ 82,584 KB
実行使用メモリ 93,404 KB
平均クエリ数 953.86
最終ジャッジ日時 2024-07-26 16:34:35
合計ジャッジ時間 5,421 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge2
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 1
other AC * 28
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 # 

def primelist(N):
    pr = []
    lpf = [0] * (N + 1)
    for d in range(2, N + 1):
        if lpf[d] == 0:
            lpf[d] = d
            pr.append(d)
        for p in pr:
            if p * d > N or p > lpf[d]:
                break
            lpf[p * d] = p
    return pr

N = int(input())
if N == 1:
    print('!', 1, 1, flush=True)
    exit()

pr = primelist(N)
P = max(pr)
ls = []
res = [-1] * N
for j in range(N):
    print('?', 1, j + 1, flush=True)
    x = int(input())
    res[j] = x
    if x % P == 0:
        ls.append(j)

resa, resb = [-1] * N, [-1] * N
ansa, ansb = [-1] * N, [-1] * N
if len(ls) == 1:
    # B[j0] = P
    j0 = ls[0]
    for i in range(N):
        print('?', i + 1, j0 + 1, flush=True)
        x = int(input())
        resa[i] = x
    # resa に P が 2 箇所
    i0_list = []
    for i in range(N):
        if resa[i] == P:
            i0_list.append(i)
    i0 = i0_list[0]
    for j in range(N):
        print('?', i0 + 1, j + 1, flush=True)
        x = int(input())
        resb[j] = x
    if min(resb) == 1:
        # A[i0] = 1
        ansa[i0] = 1
        ansa[i0_list[1]] = P
        ansb = resb
        for i in range(N):
            if ansa[i] == -1:
                ansa[i] = resa[i] // P
    else:
        # A[i0] = P
        ansa[i0] = P
        ansa[i0_list[1]] = 1
        for j in range(N):
            if j == j0:
                ansb[j] = P
            else:
                ansb[j] = resb[j] // P
        for i in range(N):
            if ansa[i] == -1:
                ansa[i] = resa[i] // P
    print('!', *ansa, *ansb, flush=True)
elif len(ls) == N:
    # A[i0] = P
    i0 = 0
    for j in range(N):
        print('?', i0 + 1, j + 1, flush=True)
        x = int(input())
        resb[j] = x
    # resb に P が 2 箇所
    j0_list = []
    for j in range(N):
        if resb[j] == P:
            j0_list.append(j)
    j0 = j0_list[0]
    for i in range(N):
        print('?', i + 1, j0 + 1, flush=True)
        x = int(input())
        resa[i] = x
    if min(resa) == 1:
        # B[j0] = 1
        ansb[j0] = 1
        ansb[j0_list[1]] = P
        ansa = resa
        for j in range(N):
            if ansb[j] == -1:
                ansb[j] = resb[j] // P
    else:
        # B[j0] = P
        ansb[j0] = P
        ansb[j0_list[1]] = 1
        for i in range(N):
            if i == i0:
                ansa[i] = P
            else:
                ansa[i] = resa[i] // P
        for i in range(N):
            if ansb[i] == -1:
                ansb[i] = resb[i] // P
    print('!', *ansa, *ansb, flush=True)
else:
    exit()
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