結果
問題 | No.1885 Flat Permutation |
ユーザー | U S |
提出日時 | 2022-03-25 23:18:00 |
言語 | PyPy3 (7.3.15) |
結果 |
WA
|
実行時間 | - |
コード長 | 1,914 bytes |
コンパイル時間 | 215 ms |
コンパイル使用メモリ | 82,412 KB |
実行使用メモリ | 76,860 KB |
最終ジャッジ日時 | 2024-10-14 07:27:33 |
合計ジャッジ時間 | 5,212 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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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 | 50 ms
61,792 KB |
testcase_01 | AC | 50 ms
61,660 KB |
testcase_02 | AC | 50 ms
62,068 KB |
testcase_03 | AC | 59 ms
65,752 KB |
testcase_04 | AC | 50 ms
62,604 KB |
testcase_05 | AC | 50 ms
61,424 KB |
testcase_06 | AC | 50 ms
61,904 KB |
testcase_07 | AC | 50 ms
63,224 KB |
testcase_08 | AC | 50 ms
61,784 KB |
testcase_09 | AC | 50 ms
63,132 KB |
testcase_10 | AC | 49 ms
61,172 KB |
testcase_11 | AC | 50 ms
63,096 KB |
testcase_12 | AC | 49 ms
61,888 KB |
testcase_13 | AC | 49 ms
61,512 KB |
testcase_14 | AC | 50 ms
62,532 KB |
testcase_15 | AC | 50 ms
62,068 KB |
testcase_16 | AC | 50 ms
61,672 KB |
testcase_17 | AC | 50 ms
61,628 KB |
testcase_18 | AC | 50 ms
62,348 KB |
testcase_19 | AC | 138 ms
76,428 KB |
testcase_20 | AC | 138 ms
76,760 KB |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | AC | 50 ms
61,720 KB |
testcase_24 | AC | 51 ms
62,496 KB |
testcase_25 | AC | 50 ms
62,196 KB |
testcase_26 | AC | 51 ms
62,260 KB |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | AC | 139 ms
76,468 KB |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | AC | 50 ms
61,444 KB |
testcase_33 | AC | 51 ms
62,112 KB |
testcase_34 | AC | 50 ms
61,292 KB |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | AC | 50 ms
61,516 KB |
testcase_38 | AC | 51 ms
61,892 KB |
testcase_39 | AC | 50 ms
61,136 KB |
testcase_40 | AC | 70 ms
68,364 KB |
testcase_41 | AC | 90 ms
72,216 KB |
testcase_42 | AC | 64 ms
68,000 KB |
testcase_43 | AC | 140 ms
76,580 KB |
testcase_44 | AC | 139 ms
76,304 KB |
testcase_45 | AC | 139 ms
76,460 KB |
testcase_46 | AC | 138 ms
76,304 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: 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: 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)