結果

問題 No.148 試験監督（3）
ユーザー realDivineJKrealDivineJK
提出日時 2020-06-05 01:39:32
言語 Python3
(3.12.2 + numpy 1.26.4 + scipy 1.12.0)
結果
TLE  
実行時間 -
コード長 21,139 bytes
コンパイル時間 310 ms
コンパイル使用メモリ 14,976 KB
実行使用メモリ 18,560 KB
最終ジャッジ日時 2024-05-08 02:00:22
合計ジャッジ時間 8,764 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge4
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 TLE -
testcase_01 TLE -
testcase_02 TLE -
testcase_03 -- -
testcase_04 -- -
testcase_05 -- -
testcase_06 -- -
testcase_07 -- -
testcase_08 -- -
testcase_09 -- -
testcase_10 -- -
testcase_11 -- -
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 # 

fact = 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T = int(input())
mod = int(1e9) + 7
def inved(a):
    x, y, u, v, k, l = 1, 0, 0, 1, a, mod
    while l != 0:
        x, y, u, v = u, v, x - u * (k // l), y - v * (k // l)
        k, l = l, k % l
    return x % mod
peak = int(5e5)
def get_fact(n):
    pos = n // peak
    f = fact[pos]
    for j in range(n % peak):
        f *= (pos*peak+j+1)%mod
        f %= mod
    return f
    
for _ in range(T):
    C, P = input().split()
    if len(P) >= 11:
        print(0)
    else:
        P = int(P)
        if P >= mod:
            print(0)
        else:
            t = 0
            n = len(C)
            for i in range(n):
                t += int(C[i])
                if i < n - 1:
                    t *= 10
                    t %= mod
            t += mod - P + 1
            t %= mod
            if t < P:
                print(0)
            else:
                X = get_fact(t)
                Y = get_fact(t - P)
                print(X*inved(Y)%mod)
0