結果
問題 | No.1885 Flat Permutation |
ユーザー | U S |
提出日時 | 2022-03-25 23:20:21 |
言語 | PyPy3 (7.3.15) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,012 bytes |
コンパイル時間 | 242 ms |
コンパイル使用メモリ | 82,440 KB |
実行使用メモリ | 77,248 KB |
最終ジャッジ日時 | 2024-10-14 07:30:17 |
合計ジャッジ時間 | 5,415 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 | 51 ms
61,860 KB |
testcase_01 | AC | 50 ms
62,804 KB |
testcase_02 | AC | 50 ms
62,276 KB |
testcase_03 | AC | 59 ms
66,212 KB |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | AC | 49 ms
61,636 KB |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | AC | 48 ms
61,788 KB |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | AC | 50 ms
61,560 KB |
testcase_14 | AC | 49 ms
62,296 KB |
testcase_15 | WA | - |
testcase_16 | AC | 50 ms
61,952 KB |
testcase_17 | AC | 49 ms
62,140 KB |
testcase_18 | AC | 49 ms
61,732 KB |
testcase_19 | AC | 137 ms
76,956 KB |
testcase_20 | AC | 138 ms
76,488 KB |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | AC | 51 ms
62,664 KB |
testcase_25 | AC | 49 ms
63,424 KB |
testcase_26 | AC | 50 ms
62,716 KB |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | AC | 137 ms
76,552 KB |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | WA | - |
testcase_33 | AC | 51 ms
62,348 KB |
testcase_34 | AC | 48 ms
61,600 KB |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | AC | 49 ms
62,348 KB |
testcase_38 | AC | 50 ms
62,100 KB |
testcase_39 | AC | 49 ms
61,424 KB |
testcase_40 | AC | 71 ms
68,380 KB |
testcase_41 | AC | 88 ms
72,072 KB |
testcase_42 | AC | 63 ms
67,196 KB |
testcase_43 | AC | 139 ms
76,816 KB |
testcase_44 | AC | 138 ms
76,508 KB |
testcase_45 | AC | 138 ms
76,800 KB |
testcase_46 | AC | 140 ms
76,628 KB |
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) bunbo = jump * (step+jump+1)*(step+jump+2) now *= bunsi*pow(bunbo,mod-2,mod) now %= mod ans += now ans %= mod step -= 3 jump += 1 print(ans % mod) elif x == 1: if y-x == 1: print(0) exit() step = y-1-3 jump = 1 ans = 1 now = 1 while step >= 0: bunsi = (step + 1) * (step + 2) * (step + 3) bunbo = jump * (step + jump + 1) * (step + jump + 2) now *= bunsi * pow(bunbo, mod - 2, mod) now %= mod ans += now ans %= mod step -= 3 jump += 1 print(ans % mod) else: if y-x == 1: print(0) exit() step = n-x-3 jump = 1 ans = 1 now = 1 while step >= 0: bunsi = (step + 1) * (step + 2) * (step + 3) bunbo = jump * (step + jump + 1) * (step + jump + 2) now *= bunsi * pow(bunbo, mod - 2, mod) now %= mod ans += now ans %= mod step -= 3 jump += 1 print(ans % mod)