結果

問題 No.2650 [Cherry 6th Tune *] セイジャク
ユーザー rlangevin
提出日時 2024-02-23 21:56:39
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 1,014 ms / 2,500 ms
コード長 5,086 bytes
コンパイル時間 198 ms
コンパイル使用メモリ 82,032 KB
実行使用メモリ 180,704 KB
最終ジャッジ日時 2024-09-29 06:29:47
合計ジャッジ時間 27,014 ms
ジャッジサーバーID
(参考情報)
judge1 / judge3
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 2
other AC * 31
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 #
プレゼンテーションモードにする

import sys
input = sys.stdin.readline
class LazySegmentTree:
def __init__(
self,
n,
identity_e_node,
identity_e_lazy,
combine_node_f,
combine_lazy_f,
reflect_f,
):
self._n = n
self._size = 1
self._height = 0
while self._size < self._n:
self._size <<= 1
self._height += 1
self._identity_e_node = identity_e_node
self._identity_e_lazy = identity_e_lazy
self._combine_node_f = combine_node_f
self._combine_lazy_f = combine_lazy_f
self._reflect_f = reflect_f
self._node = [self._identity_e_node] * (2 * self._size)
self._lazy = [self._identity_e_lazy] * (2 * self._size)
#
def _reflect_lazy(self, index):
return self._reflect_f(self._node[index], self._lazy[index])
def _propagate_from_top(self, index):
index += self._size
for h in range(self._height, 0, -1):
i = index >> h
if self._lazy[i] != self._identity_e_lazy:
self._lazy[i << 1] = self._combine_lazy_f(
self._lazy[i << 1], self._lazy[i]
)
self._lazy[i << 1 | 1] = self._combine_lazy_f(
self._lazy[i << 1 | 1], self._lazy[i]
)
self._node[i] = self._reflect_lazy(i)
self._lazy[i] = self._identity_e_lazy
def _update_from_bottom(self, index):
index = (index + self._size) >> 1
while index:
self._node[index] = self._combine_node_f(
self._reflect_lazy(index << 1),
self._reflect_lazy(index << 1 | 1)
)
index >>= 1
def build(self, array):
assert len(array) == self._n
for index, value in enumerate(array, start=self._size):
self._node[index] = value
for index in range(self._size - 1, 0, -1):
self._node[index] = self._combine_node_f(
self._node[index << 1],
self._node[index << 1 | 1]
)
# [L, R) (0-indexed)value
def update(self, L, R, value):
self._propagate_from_top(L)
self._propagate_from_top(R - 1)
L_lazy = L + self._size
R_lazy = R + self._size
while L_lazy < R_lazy:
if L_lazy & 1:
self._lazy[L_lazy] = self._combine_lazy_f(self._lazy[L_lazy], value)
L_lazy += 1
if R_lazy & 1:
R_lazy -= 1
self._lazy[R_lazy] = self._combine_lazy_f(self._lazy[R_lazy], value)
L_lazy >>= 1
R_lazy >>= 1
self._update_from_bottom(L)
self._update_from_bottom(R - 1)
# [L, R) (0-indexed)
# Lcombine_node_f
def fold(self, L, R):
self._propagate_from_top(L)
self._propagate_from_top(R - 1)
L += self._size
R += self._size
value_L = self._identity_e_node
value_R = self._identity_e_node
while L < R:
if L & 1:
value_L = self._combine_node_f(value_L, self._reflect_lazy(L))
L += 1
if R & 1:
R -= 1
value_R = self._combine_node_f(self._reflect_lazy(R), value_R)
L >>= 1
R >>= 1
return self._combine_node_f(value_L, value_R)
def __str__(self):
temp = []
for i in range(self._n):
temp.append(str(self.fold(i, i + 1)))
return ' '.join(temp)
#
def combine_lazy_f(lhs, rhs):
if rhs == -1:
return lhs
return rhs
def reflect_f(node, lazy):
if lazy < 0:
return node
return lazy
from bisect import *
from copy import deepcopy
def compress(lst):
'''
B: lst
idx_to_val: index
val_to_idx: index
'''
B = []
val_to_idx = {}
idx_to_val = deepcopy(lst)
idx_to_val = list(set(idx_to_val))
idx_to_val.sort()
for i in range(len(lst)):
ind = bisect_left(idx_to_val, lst[i])
B.append(ind)
for i in range(len(B)):
val_to_idx[lst[i]] = B[i]
return B, idx_to_val, val_to_idx
N, A = map(int, input().split())
X = list(map(int, input().split()))
T = int(input())
L, R = [0] * T, [0] * T
for i in range(T):
L[i], R[i] = map(int, input().split())
B, iv, vi = compress(X + L + R)
M = N + 2 * T + 5
from operator import add
LT = LazySegmentTree(M,
0,
-1,
add,
combine_lazy_f,
reflect_f)
for i in range(T):
LT.update(vi[L[i]], vi[R[i]] + 1, i + 1)
for i in range(N):
ans = LT.fold(vi[X[i]], vi[X[i]] + 1)
print(ans) if ans else print(-1)
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