結果
| 問題 |
No.1763 Many Balls
|
| コンテスト | |
| ユーザー |
lam6er
|
| 提出日時 | 2025-04-09 21:02:54 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,180 bytes |
| コンパイル時間 | 261 ms |
| コンパイル使用メモリ | 82,840 KB |
| 実行使用メモリ | 94,184 KB |
| 最終ジャッジ日時 | 2025-04-09 21:04:34 |
| 合計ジャッジ時間 | 12,653 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 3 WA * 4 TLE * 1 -- * 55 |
ソースコード
MOD = 90001
def main():
import sys
input = sys.stdin.read().split()
ptr = 0
N_str = input[ptr]
ptr += 1
M = int(input[ptr])
ptr += 1
if len(N_str) > 5:
print(0)
return
N = int(N_str)
if N >= MOD:
print(0)
return
n = N
# Read M persons' conditions
persons = []
for _ in range(M):
k_i = int(input[ptr])
ptr +=1
A = list(map(int, input[ptr:ptr +k_i]))
ptr += k_i
persons.append(A)
# Precompute fact and inv_fact up to n
max_n = n
fact = [1] * (max_n +1)
for i in range(1, max_n +1):
fact[i] = fact[i-1] * i % MOD
inv_fact = [1] * (max_n +1)
inv_fact[max_n] = pow(fact[max_n], MOD-2, MOD)
for i in range(max_n-1, -1, -1):
inv_fact[i] = inv_fact[i+1] * (i+1) % MOD
# Precompute allowed counts for each person
allowed = []
for person in persons:
A_list = person
allowed_i = [False]*(n+1)
for c in range(n+1):
for a in A_list:
if c % a == 0:
allowed_i[c] = True
break
allowed.append(allowed_i)
# Initialize DP: current possible sums and their coefficients
dp = [0]*(n+1)
dp[0] = 1
for person_idx in range(M):
allowed_i = allowed[person_idx]
new_dp = [0]*(n+1)
for s in range(n+1):
if dp[s] ==0:
continue
for c in range(n+1):
if not allowed_i[c]:
continue
if s + c > n:
continue
term = dp[s] * inv_fact[c] % MOD
new_dp[s + c] = (new_dp[s + c] + term) % MOD
dp = new_dp
# Compute e^x's terms (inv_fact[d] for d in 0..n)
e_terms = [inv_fact[d] for d in range(n+1)]
# Compute result = sum (dp[s] * e_terms[d]) where s + d =n
res = 0
for s in range(n+1):
d = n - s
if d <0:
continue
res = (res + dp[s] * e_terms[d]) % MOD
res = res * fact[n] % MOD
print(res)
if __name__ == '__main__':
main()
lam6er