結果
| 問題 |
No.1172 Add Recursive Sequence
|
| コンテスト | |
| ユーザー |
Salmonize
|
| 提出日時 | 2020-08-14 23:05:42 |
| 言語 | Python3 (3.13.1 + numpy 2.2.1 + scipy 1.14.1) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 2,401 bytes |
| コンパイル時間 | 326 ms |
| コンパイル使用メモリ | 12,928 KB |
| 実行使用メモリ | 61,196 KB |
| 最終ジャッジ日時 | 2024-10-10 16:32:23 |
| 合計ジャッジ時間 | 11,947 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 14 TLE * 1 -- * 1 |
ソースコード
import sys
readline = sys.stdin.buffer.readline
readall = sys.stdin.read
ns = lambda: readline().rstrip()
ni = lambda: int(readline().rstrip())
nm = lambda: map(int, readline().split())
nl = lambda: list(map(int, readline().split()))
prn = lambda x: print(*x, sep='\n')
def Kitamasa(C, X, k, e0=0, e1=1, mod=10**9+7):
'''
0-indexed
calc X[k]
'''
n = len(X)
def _plus1(g):
ret = [(g[i-1] + g[-1] * C[i]) % mod for i in range(n)]
ret[0] = g[-1] * C[0] % mod
return ret
def _mult2(g):
ret = [e0]*(2 * n - 1)
for i in range(n):
for j in range(n):
ret[i + j] = (ret[i + j] + g[i] * g[j]) % mod
for i in range(2*n-2, n-1, -1):
for j in range(n):
ret[i + j - n] = (ret[i + j - n] + ret[i] * C[j]) % mod
return ret[:n]
g = [e0]*n
g[0] = e1
t = k.bit_length()
for i in range(t-1, -1, -1):
g = _mult2(g)
if k & (1<<i):
g = _plus1(g)
ans = e0
for i in range(n):
ans = (ans + g[i] * X[i]) % mod
return ans
def solve():
k, n, m = nm()
a = nl()
c = nl()[::-1]
f = [0]*n
g = [list() for _ in range(n+1)]
d = dict()
mod = 10**9 + 7
for _ in range(m):
l, r = nm()
f[l] += 1
g[r].append(r-l)
def plus1(g):
ret = [(g[i-1] + g[-1] * c[i]) % mod for i in range(k)]
ret[0] = g[-1] * c[0] % mod
return ret
def mult2(g):
ret = [0]*(2 * k - 1)
for i in range(k):
for j in range(k):
ret[i + j] = (ret[i + j] + g[i] * g[j]) % mod
for i in range(2 * k - 2, k - 1, -1):
for j in range(k):
ret[i + j - k] = (ret[i + j - k] + ret[i] * c[j]) % mod
return ret[:k]
def search(x):
if x in d:
return d[x]
if x < k:
ret = [0] * k
ret[x] = 1
d[x] = ret
elif x & 1:
d[x] = plus1(search(x-1))
else:
d[x] = mult2(search(x>>1))
return d[x]
cur = [0] * k
for i in range(n):
# print(i, f[i], g[i])
cur = plus1(cur)
cur[0] += f[i]
for x in g[i]:
neg = search(x)
for j in range(k):
cur[j] -= neg[j]
# print(cur, i, f[i], g[i])
print(sum(cur[j]*a[j] for j in range(k)) % mod)
# cur = [1, 0]
# for i in range(10):
# cur = plus1(cur)
# print(cur, search(i+1))
return
solve()
Salmonize