結果
| 問題 |
No.877 Range ReLU Query
|
| コンテスト | |
| ユーザー |
norioc
|
| 提出日時 | 2024-06-11 05:43:02 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 5,050 bytes |
| コンパイル時間 | 478 ms |
| コンパイル使用メモリ | 82,720 KB |
| 実行使用メモリ | 206,012 KB |
| 最終ジャッジ日時 | 2025-01-03 12:40:30 |
| 合計ジャッジ時間 | 23,879 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 14 TLE * 6 |
ソースコード
import typing
def _ceil_pow2(n: int) -> int:
x = 0
while (1 << x) < n:
x += 1
return x
class SegTree:
def __init__(self,
op: typing.Callable[[typing.Any, typing.Any], typing.Any],
e: typing.Any,
v: typing.Union[int, typing.List[typing.Any]]) -> None:
self._op = op
self._e = e
if isinstance(v, int):
v = [e] * v
self._n = len(v)
self._log = _ceil_pow2(self._n)
self._size = 1 << self._log
self._d = [e] * (2 * self._size)
for i in range(self._n):
self._d[self._size + i] = v[i]
for i in range(self._size - 1, 0, -1):
self._update(i)
def set(self, p: int, x: typing.Any) -> None:
assert 0 <= p < self._n
p += self._size
self._d[p] = x
for i in range(1, self._log + 1):
self._update(p >> i)
def get(self, p: int) -> typing.Any:
assert 0 <= p < self._n
return self._d[p + self._size]
def prod(self, left: int, right: int) -> typing.Any:
assert 0 <= left <= right <= self._n
sml = self._e
smr = self._e
left += self._size
right += self._size
while left < right:
if left & 1:
sml = self._op(sml, self._d[left])
left += 1
if right & 1:
right -= 1
smr = self._op(self._d[right], smr)
left >>= 1
right >>= 1
return self._op(sml, smr)
def all_prod(self) -> typing.Any:
return self._d[1]
def max_right(self, left: int,
f: typing.Callable[[typing.Any], bool]) -> int:
assert 0 <= left <= self._n
assert f(self._e)
if left == self._n:
return self._n
left += self._size
sm = self._e
first = True
while first or (left & -left) != left:
first = False
while left % 2 == 0:
left >>= 1
if not f(self._op(sm, self._d[left])):
while left < self._size:
left *= 2
if f(self._op(sm, self._d[left])):
sm = self._op(sm, self._d[left])
left += 1
return left - self._size
sm = self._op(sm, self._d[left])
left += 1
return self._n
def min_left(self, right: int,
f: typing.Callable[[typing.Any], bool]) -> int:
assert 0 <= right <= self._n
assert f(self._e)
if right == 0:
return 0
right += self._size
sm = self._e
first = True
while first or (right & -right) != right:
first = False
right -= 1
while right > 1 and right % 2:
right >>= 1
if not f(self._op(self._d[right], sm)):
while right < self._size:
right = 2 * right + 1
if f(self._op(self._d[right], sm)):
sm = self._op(self._d[right], sm)
right -= 1
return right + 1 - self._size
sm = self._op(self._d[right], sm)
return 0
def _update(self, k: int) -> None:
self._d[k] = self._op(self._d[2 * k], self._d[2 * k + 1])
from bisect import bisect_right
from itertools import accumulate, islice
# ソート済みリスト a, b をマージ
def merge(a: list, b: list) -> list:
na, nb = len(a), len(b)
pa = pb = 0
res = []
while pa < na and pb < nb:
if a[pa] <= b[pb]:
res.append(a[pa])
pa += 1
else:
res.append(b[pb])
pb += 1
res.extend(islice(a, pa, na))
res.extend(islice(b, pb, nb))
return res
# 構築用
class D:
def __init__(self, xs):
self.xs = xs # ソート済みリスト
self.acc = list(accumulate(xs))
# \sum max(a_i - x, 0) を返す
def sum(self, x) -> int:
p = bisect_right(self.xs, x)
s = self.acc[-1]
if p > 0: s -= self.acc[p-1] # x 以下は 0 扱い
s -= x * (len(self.xs) - p) # x 以上は個数分の x を引く
return s
def get_sum(self) -> int:
return self.sum(target)
# クエリ用
class S:
def __init__(self, sum):
self.sum = sum # x 以下の総和
def get_sum(self) -> int:
return self.sum
# 構築用
def op_build(a: D, b: D) -> D:
return D(merge(a.xs, b.xs))
# クエリ用
def op_query(a: D | S, b: D | S) -> S:
return S(a.get_sum() + b.get_sum())
INF = 1 << 60
N, Q = map(int, input().split())
A = list(map(int, input().split()))
target = 0 # 検索する値
segt = SegTree(op_build, D([0]), [D([a]) for a in A])
segt._op = op_query # クエリ用に差し替え
for _ in range(Q):
_, l, r, x = map(int, input().split())
l -= 1
target = x
res = segt.prod(l, r).get_sum()
print(res)
norioc