#486903 (Python3) No.148 試験監督（3）

提出ソース
結果

問題	No.148 試験監督（3）
ユーザー	maine_honzuki
提出日時	2020-05-25 22:30:19
言語	Python3 (3.12.2 + numpy 1.26.4 + scipy 1.12.0)
結果	RE (最新) AC (最初)
実行時間	-
コード長	49,877 bytes
コンパイル時間	148 ms
コンパイル使用メモリ	17,536 KB
実行使用メモリ	15,724 KB
最終ジャッジ日時	2024-10-13 02:16:48
合計ジャッジ時間	3,390 ms
ジャッジサーバーID （参考情報）	judge4 / judge3
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	124 ms 15,360 KB
testcase_01	AC	210 ms 15,592 KB
testcase_02	AC	438 ms 15,588 KB
testcase_03	AC	427 ms 15,488 KB
testcase_04	AC	579 ms 15,488 KB
testcase_05	AC	440 ms 15,488 KB
testcase_06	RE	-
testcase_07	RE	-
testcase_08	RE	-
testcase_09	RE	-
testcase_10	RE	-
testcase_11	AC	38 ms 15,488 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

raw source code
mod = 10**9+7
table= 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T = int(input())

def fact(n):
    N = n//(2 * 10**5)
    ret = table[N]
    for i in range(N*(2 * 10**5)+1,n+1):
        ret = ret * i % mod
    return ret

def inv(x):
    return pow(x,mod-2,mod)

for _ in range(T):
    C,P = map(int,input().split())
    if P >= mod or P*2-1 > C:
        print(0)
        continue
    a = C-P+1
    b = C-2*P+1
    a %= mod
    b %= mod
    if a<b:
        print(0)
    else:
        print(fact(a)*inv(fact(b))%mod)
yukicoder

結果

テストケース

ソースコード
