結果
問題 | No.1885 Flat Permutation |
ユーザー | U S |
提出日時 | 2022-03-25 22:54:31 |
言語 | PyPy3 (7.3.15) |
結果 |
TLE
|
実行時間 | - |
コード長 | 1,864 bytes |
コンパイル時間 | 166 ms |
コンパイル使用メモリ | 82,152 KB |
実行使用メモリ | 85,788 KB |
最終ジャッジ日時 | 2024-10-14 06:56:45 |
合計ジャッジ時間 | 5,067 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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 | 53 ms
69,748 KB |
testcase_01 | AC | 50 ms
62,536 KB |
testcase_02 | AC | 50 ms
62,528 KB |
testcase_03 | AC | 136 ms
76,616 KB |
testcase_04 | AC | 50 ms
61,700 KB |
testcase_05 | AC | 50 ms
61,660 KB |
testcase_06 | AC | 51 ms
62,184 KB |
testcase_07 | AC | 50 ms
63,596 KB |
testcase_08 | AC | 50 ms
61,324 KB |
testcase_09 | AC | 49 ms
61,860 KB |
testcase_10 | AC | 50 ms
61,548 KB |
testcase_11 | AC | 50 ms
61,508 KB |
testcase_12 | AC | 50 ms
61,480 KB |
testcase_13 | AC | 50 ms
62,076 KB |
testcase_14 | AC | 50 ms
61,256 KB |
testcase_15 | AC | 51 ms
62,856 KB |
testcase_16 | AC | 50 ms
61,256 KB |
testcase_17 | AC | 50 ms
61,564 KB |
testcase_18 | AC | 50 ms
62,392 KB |
testcase_19 | TLE | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
testcase_38 | -- | - |
testcase_39 | -- | - |
testcase_40 | -- | - |
testcase_41 | -- | - |
testcase_42 | -- | - |
testcase_43 | -- | - |
testcase_44 | -- | - |
testcase_45 | -- | - |
testcase_46 | -- | - |
ソースコード
# import sys # input = sys.stdin.readline # import pypyjit # pypyjit.set_param('max_unroll_recursion=-1') def mp():return map(int,input().split()) def lmp():return list(map(int,input().split())) def mps(A):return [tuple(map(int, input().split())) for _ in range(A)] def stoi(LIST):return list(map(int,LIST)) def itos(LIST):return list(map(str,LIST)) def bitA(X,A):return X & 1<<A == 1<<A import math import bisect import heapq import time from copy import copy as cc from copy import deepcopy as dc from itertools import accumulate, product from collections import Counter, defaultdict, deque def ceil(U,V):return (U+V-1)//V def modf1(N,MOD):return (N-1)%MOD+1 inf = int(1e18+20) mod = 998244353 n,x,y = mp() if x > y:x,y = y,x if x != 1 and y != n: if y-x == 1: print(0) else: step = y - 1 - (x+1) - 3 jump = 1 ans = 1 now = 1 while step >= 0: bunsi = (step+1) * (step+2)* (step+3)% mod bunbo = jump * (step+jump+1)*(step+jump+2)% mod now *= bunsi*pow(bunbo,mod-2,mod) ans += now ans %= mod step -= 3 jump += 1 print(ans % mod) elif x == 1: step = y-1-3 jump = 1 ans = 1 now = 1 while step >= 0: bunsi = (step + 1) * (step + 2) * (step + 3)% mod bunbo = jump * (step + jump + 1) * (step + jump + 2)% mod now *= bunsi * pow(bunbo, mod - 2, mod) ans += now ans %= mod step -= 3 jump += 1 print(ans % mod) else: step = n-x-3 jump = 1 ans = 1 now = 1 while step >= 0: bunsi = (step + 1) * (step + 2) * (step + 3) % mod bunbo = jump * (step + jump + 1) * (step + jump + 2) % mod ans += bunsi * pow(bunbo, mod - 2, mod) ans %= mod step -= 3 jump += 1 print(ans%mod)