結果
問題 | No.1885 Flat Permutation |
ユーザー | U S |
提出日時 | 2022-03-25 23:47:21 |
言語 | PyPy3 (7.3.15) |
結果 |
WA
|
実行時間 | - |
コード長 | 1,539 bytes |
コンパイル時間 | 247 ms |
コンパイル使用メモリ | 81,664 KB |
実行使用メモリ | 79,872 KB |
最終ジャッジ日時 | 2024-10-14 08:04:12 |
合計ジャッジ時間 | 5,399 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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 | 49 ms
60,672 KB |
testcase_01 | AC | 49 ms
61,312 KB |
testcase_02 | AC | 49 ms
61,184 KB |
testcase_03 | AC | 58 ms
66,944 KB |
testcase_04 | AC | 49 ms
61,056 KB |
testcase_05 | AC | 49 ms
60,928 KB |
testcase_06 | AC | 50 ms
61,312 KB |
testcase_07 | AC | 50 ms
61,056 KB |
testcase_08 | AC | 52 ms
60,928 KB |
testcase_09 | AC | 54 ms
60,672 KB |
testcase_10 | AC | 50 ms
60,544 KB |
testcase_11 | AC | 51 ms
60,928 KB |
testcase_12 | AC | 49 ms
61,312 KB |
testcase_13 | AC | 50 ms
60,544 KB |
testcase_14 | AC | 49 ms
61,184 KB |
testcase_15 | AC | 51 ms
60,672 KB |
testcase_16 | AC | 63 ms
76,928 KB |
testcase_17 | AC | 66 ms
76,672 KB |
testcase_18 | AC | 65 ms
77,056 KB |
testcase_19 | AC | 134 ms
79,616 KB |
testcase_20 | AC | 136 ms
79,872 KB |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | AC | 65 ms
77,056 KB |
testcase_24 | AC | 65 ms
76,800 KB |
testcase_25 | AC | 62 ms
75,264 KB |
testcase_26 | AC | 66 ms
76,800 KB |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | AC | 135 ms
79,616 KB |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | AC | 64 ms
76,800 KB |
testcase_33 | AC | 64 ms
76,800 KB |
testcase_34 | AC | 66 ms
77,312 KB |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | AC | 65 ms
76,672 KB |
testcase_38 | AC | 62 ms
75,392 KB |
testcase_39 | AC | 63 ms
75,520 KB |
testcase_40 | AC | 75 ms
74,112 KB |
testcase_41 | AC | 92 ms
76,544 KB |
testcase_42 | AC | 65 ms
69,888 KB |
testcase_43 | AC | 134 ms
79,616 KB |
testcase_44 | AC | 134 ms
79,488 KB |
testcase_45 | AC | 136 ms
79,744 KB |
testcase_46 | AC | 137 ms
79,744 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 def calc(step): u = cc(step) jump = 0 ans = 0 while step >= 0: bunsi = md[u-2*jump] bunbo = (md[u-3*jump]*md[jump]) ans += bunsi*pow(bunbo,mod-2,mod) step -= 3 jump += 1 ans %= mod #print(ans) print(ans) # 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) n,x,y = mp() md = [1] for i in range(1,n+5): md.append(md[-1]*i%mod) if x > y:x,y = y,x if x != 1 and y != n: if y-x == 1: print(0) else: calc(y-1-(x+1)) else:calc(y-x)