結果
問題 | No.916 Encounter On A Tree |
ユーザー | Coki628 |
提出日時 | 2020-08-07 15:54:25 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 68 ms / 2,000 ms |
コード長 | 2,027 bytes |
コンパイル時間 | 321 ms |
コンパイル使用メモリ | 82,528 KB |
実行使用メモリ | 69,088 KB |
最終ジャッジ日時 | 2024-09-24 08:10:38 |
合計ジャッジ時間 | 5,433 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
(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 | 41 ms
53,456 KB |
testcase_01 | AC | 37 ms
53,092 KB |
testcase_02 | AC | 67 ms
67,508 KB |
testcase_03 | AC | 66 ms
67,952 KB |
testcase_04 | AC | 66 ms
68,264 KB |
testcase_05 | AC | 67 ms
67,808 KB |
testcase_06 | AC | 67 ms
67,836 KB |
testcase_07 | AC | 67 ms
68,320 KB |
testcase_08 | AC | 45 ms
61,224 KB |
testcase_09 | AC | 50 ms
62,676 KB |
testcase_10 | AC | 37 ms
53,392 KB |
testcase_11 | AC | 36 ms
53,392 KB |
testcase_12 | AC | 67 ms
67,844 KB |
testcase_13 | AC | 68 ms
67,392 KB |
testcase_14 | AC | 67 ms
67,288 KB |
testcase_15 | AC | 67 ms
67,068 KB |
testcase_16 | AC | 49 ms
62,432 KB |
testcase_17 | AC | 66 ms
68,060 KB |
testcase_18 | AC | 37 ms
54,236 KB |
testcase_19 | AC | 66 ms
67,824 KB |
testcase_20 | AC | 67 ms
68,952 KB |
testcase_21 | AC | 67 ms
67,492 KB |
testcase_22 | AC | 68 ms
67,780 KB |
testcase_23 | AC | 68 ms
68,472 KB |
testcase_24 | AC | 68 ms
67,416 KB |
testcase_25 | AC | 67 ms
67,472 KB |
testcase_26 | AC | 55 ms
64,400 KB |
testcase_27 | AC | 56 ms
63,100 KB |
testcase_28 | AC | 48 ms
61,756 KB |
testcase_29 | AC | 67 ms
68,680 KB |
testcase_30 | AC | 68 ms
68,048 KB |
testcase_31 | AC | 67 ms
69,088 KB |
testcase_32 | AC | 68 ms
68,224 KB |
testcase_33 | AC | 55 ms
64,312 KB |
testcase_34 | AC | 48 ms
61,464 KB |
testcase_35 | AC | 44 ms
60,088 KB |
testcase_36 | AC | 66 ms
67,376 KB |
testcase_37 | AC | 66 ms
67,748 KB |
testcase_38 | AC | 49 ms
62,228 KB |
testcase_39 | AC | 67 ms
67,892 KB |
testcase_40 | AC | 68 ms
67,612 KB |
testcase_41 | AC | 37 ms
53,396 KB |
testcase_42 | AC | 37 ms
53,272 KB |
testcase_43 | AC | 37 ms
54,148 KB |
testcase_44 | AC | 38 ms
53,364 KB |
testcase_45 | AC | 44 ms
59,740 KB |
testcase_46 | AC | 37 ms
53,844 KB |
testcase_47 | AC | 36 ms
53,448 KB |
testcase_48 | AC | 37 ms
54,236 KB |
testcase_49 | AC | 37 ms
53,736 KB |
testcase_50 | AC | 38 ms
54,552 KB |
testcase_51 | AC | 37 ms
53,748 KB |
testcase_52 | AC | 36 ms
53,508 KB |
testcase_53 | AC | 37 ms
54,360 KB |
testcase_54 | AC | 37 ms
54,136 KB |
testcase_55 | AC | 38 ms
54,396 KB |
testcase_56 | AC | 37 ms
53,520 KB |
testcase_57 | AC | 41 ms
58,844 KB |
testcase_58 | AC | 42 ms
61,256 KB |
testcase_59 | AC | 41 ms
59,560 KB |
testcase_60 | AC | 43 ms
59,296 KB |
ソースコード
import sys from math import log2 def input(): return sys.stdin.readline().strip() def list2d(a, b, c): return [[c] * b for i in range(a)] def list3d(a, b, c, d): return [[[d] * c for j in range(b)] for i in range(a)] def list4d(a, b, c, d, e): return [[[[e] * d for j in range(c)] for j in range(b)] for i in range(a)] def ceil(x, y=1): return int(-(-x // y)) def INT(): return int(input()) def MAP(): return map(int, input().split()) def LIST(N=None): return list(MAP()) if N is None else [INT() for i in range(N)] def Yes(): print('Yes') def No(): print('No') def YES(): print('YES') def NO(): print('NO') sys.setrecursionlimit(10 ** 9) INF = 10 ** 19 MOD = 10 ** 9 + 7 EPS = 10 ** -10 class ModTools: """ 階乗・逆元用のテーブルを構築する """ def __init__(self, MAX, MOD): # nCrならn、nHrならn+rまで作る MAX += 1 self.MAX = MAX self.MOD = MOD factorial = [1] * MAX factorial[0] = factorial[1] = 1 for i in range(2, MAX): factorial[i] = factorial[i-1] * i % MOD inverse = [1] * MAX inverse[MAX-1] = pow(factorial[MAX-1], MOD-2, MOD) for i in range(MAX-2, -1, -1): inverse[i] = inverse[i+1] * (i+1) % MOD self.fact = factorial self.inv = inverse D, L, R, K = MAP() vcnt = [0] * (D+1) for d in range(1, D+1): vcnt[d] = 2**(d-1) mt = ModTools(vcnt[D], MOD) ld = int(log2(L)) + 1 rd = int(log2(R)) + 1 for lcad in range(1, min(ld, rd)+1): k = (ld - lcad) + (rd - lcad) if k == K: lcacnt = vcnt[lcad] lcnt = vcnt[ld-lcad] if lcad == ld: lcnt = lcacnt lcacnt = 1 rcnt = vcnt[rd-lcad] ans = lcacnt * lcnt * rcnt * 2 % MOD for d in range(1, D+1): others = vcnt[d] if d == ld: others -= 1 if d == rd: others -= 1 ans *= mt.fact[others] ans %= MOD print(ans) break else: print(0)