結果

問題 No.1873 Bracket Swapping
ユーザー chineristACchineristAC
提出日時 2022-03-12 01:37:27
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 450 ms / 2,000 ms
コード長 2,571 bytes
コンパイル時間 283 ms
コンパイル使用メモリ 82,152 KB
実行使用メモリ 83,284 KB
最終ジャッジ日時 2024-09-16 05:44:44
合計ジャッジ時間 8,117 ms
ジャッジサーバーID
(参考情報)
judge5 / judge1
このコードへのチャレンジ
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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 54 ms
68,924 KB
testcase_01 AC 55 ms
69,308 KB
testcase_02 AC 63 ms
73,112 KB
testcase_03 AC 131 ms
82,428 KB
testcase_04 AC 111 ms
82,252 KB
testcase_05 AC 112 ms
82,208 KB
testcase_06 AC 258 ms
82,732 KB
testcase_07 AC 61 ms
72,788 KB
testcase_08 AC 416 ms
83,284 KB
testcase_09 AC 450 ms
83,152 KB
testcase_10 AC 333 ms
82,916 KB
testcase_11 AC 88 ms
82,276 KB
testcase_12 AC 239 ms
82,596 KB
testcase_13 AC 209 ms
82,500 KB
testcase_14 AC 408 ms
82,996 KB
testcase_15 AC 161 ms
82,536 KB
testcase_16 AC 81 ms
78,096 KB
testcase_17 AC 264 ms
82,660 KB
testcase_18 AC 84 ms
82,204 KB
testcase_19 AC 97 ms
82,300 KB
testcase_20 AC 354 ms
82,904 KB
testcase_21 AC 84 ms
82,196 KB
testcase_22 AC 111 ms
82,256 KB
testcase_23 AC 449 ms
82,944 KB
testcase_24 AC 449 ms
82,852 KB
testcase_25 AC 441 ms
83,228 KB
testcase_26 AC 296 ms
82,908 KB
testcase_27 AC 403 ms
82,996 KB
testcase_28 AC 111 ms
82,376 KB
testcase_29 AC 57 ms
67,964 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

import sys,random,bisect
from collections import deque,defaultdict
from heapq import heapify,heappop,heappush
from itertools import permutations
from math import gcd

input = lambda :sys.stdin.readline().rstrip()
mi = lambda :map(int,input().split())
li = lambda :list(mi())

def cmb(n, r, mod):
    if ( r<0 or r>n ):
        return 0
    return (g1[n] * g2[r] % mod) * g2[n-r] % mod

mod = 998244353
N = 2*10**5
g1 = [1]*(N+1)
g2 = [1]*(N+1)
inverse = [1]*(N+1)

for i in range( 2, N + 1 ):
    g1[i]=( ( g1[i-1] * i ) % mod )
    inverse[i]=( ( -inverse[mod % i] * (mod//i) ) % mod )
    g2[i]=( (g2[i-1] * inverse[i]) % mod )
inverse[0]=0

def poly_eval(f,x):
    res = 0
    for i in range(len(f)):
        res += f[i] * pow(x,i)
    return res

def add(f,g):
    res = [0 for i in range(max(len(f),len(g)))]
    for i in range(len(f)):
        res[i] += f[i]
    for j in range(len(g)):
        res[j] += g[j]
    return res

def mul(f,g):
    res = [0 for i in range(len(f)+len(g)-1)]
    for i in range(len(f)):
        for j in range(len(g)):
            res[i+j] += f[i] * g[j]
    return res

def mat_mul(X,Y):
    n,m = len(X),len(Y[0])
    res = [[0 for j in range(m)] for i in range(n)]
    for i in range(n):
        for j in range(m):
            for k in range(len(Y)):
                res[i][j] += X[i][k] * Y[k][j]
                res[i][j] %= mod
    return res

S = input()
K = int(input())
n = len(S)//2

left = set([i for i in range(2*n) if S[i]=="("])
right = set([i for i in range(2*n) if S[i]==")"])

dp = [[0 for k in range(n+1)] for j in range(n+1)]
dp[0][0] = 1
for i in range(2*n):
    ndp = [[0 for k in range(n+1)] for j in range(n+1)]
    for j in range(n+1):
        for k in range(n+1):
            if not dp[j][k]:
                continue

            """
            (にする
            """
            if i not in left and j < n and k < n:
                ndp[j+1][k+1] += dp[j][k]
                ndp[j+1][k+1] %= mod
            elif j < n:
                ndp[j+1][k] += dp[j][k]
                ndp[j+1][k] %= mod
            
            """
            )にする
            """
            if j!=0:
                ndp[j-1][k] += dp[j][k]
                ndp[j-1][k] %= mod
    
    dp = ndp

A = [[0 for j in range(n+1)] for i in range(n+1)]
for i in range(n+1):
    if i!=0:
        A[i-1][i] = i*i
    A[i][i] = 2*i*(n-i) + n*(n-1)
    if i!=n:
        A[i+1][i] = (n-i)*(n-i)

E = [[dp[0][i]] for i in range(n+1)]
while K:
    if K&1:
        E = mat_mul(A,E)
    A = mat_mul(A,A)
    K >>= 1

print(E[0][0])
        
0