結果

問題 No.1675 Strange Minimum Query
ユーザー ansainansain
提出日時 2021-09-10 21:54:44
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 5,911 bytes
コンパイル時間 363 ms
コンパイル使用メモリ 13,184 KB
実行使用メモリ 58,964 KB
最終ジャッジ日時 2024-06-11 23:38:54
合計ジャッジ時間 4,625 ms
ジャッジサーバーID
(参考情報)
judge4 / judge5
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 * 3
other TLE * 1 -- * 33
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
from collections import defaultdict, Counter, deque
from itertools import permutations, combinations, product, combinations_with_replacement, groupby, accumulate
import operator
from math import sqrt, gcd, factorial
#from math import isqrt, prod, comb #python3.8(notpypy)
#from bisect import bisect_left, bisect_right
#from functools import lru_cache, reduce
#from heapq import heappush, heappop, heapify, heappushpop, heapreplace
#import numpy as np
#import networkx as nx
#from networkx.utils import UnionFind
#from numba import njit, b1, i1, i4, i8, f8
#numba @njit(i1(i4[:], i8[:, :]),cache=True) i4i8 2,i1
#from scipy.sparse import csr_matrix
#from scipy.sparse.csgraph import shortest_path, floyd_warshall, dijkstra, bellman_ford, johnson, NegativeCycleError, maximum_bipartite_matching,
    maximum_flow, minimum_spanning_tree
def input(): return sys.stdin.readline().rstrip()
def divceil(n, k): return 1+(n-1)//k # n/k
def yn(hantei, yes='Yes', no='No'): print(yes if hantei else no)
#https://atcoder.jp/contests/practice2/submissions/20978786
class LazySegmentTree2:
__slots__ = ["n", "data", "lazy", "me", "oe", "fmm", "fmo", "foo"]
def __init__(self, monoid_data, monoid_identity, operator_identity, func_monoid_monoid, func_monoid_operator, func_operator_operator):
self.me = monoid_identity
self.oe = operator_identity
self.fmm = func_monoid_monoid
self.fmo = func_monoid_operator
self.foo = func_operator_operator
self.n = len(monoid_data)
self.data = monoid_data * 2
for i in range(self.n-1, 0, -1):
self.data[i] = self.fmm(self.data[2*i], self.data[2*i+1])
self.lazy = [self.oe] * (self.n * 2)
def replace(self, index, value):
index += self.n
# propagation
for shift in range(index.bit_length()-1, 0, -1):
i = index >> shift
self.lazy[2*i] = self.foo(self.lazy[2*i], self.lazy[i])
self.lazy[2*i+1] = self.foo(self.lazy[2*i+1], self.lazy[i])
self.data[i] = self.fmo(self.data[i], self.lazy[i])
self.lazy[i] = self.oe
# update
self.data[index] = value
self.lazy[index] = self.oe
# recalculation
i = index
while i > 1:
i //= 2
self.data[i] = self.fmm( self.fmo(self.data[2*i], self.lazy[2*i]), self.fmo(self.data[2*i+1], self.lazy[2*i+1]) )
self.lazy[i] = self.oe
def effect(self, l, r, operator):
l += self.n
r += self.n
# preparing indices
indices = []
l0 = (l // (l & -l)) // 2
r0 = (r // (r & -r) - 1) // 2
while r0 > l0:
indices.append(r0)
r0 //= 2
while l0 > r0:
indices.append(l0)
l0 //= 2
while l0 and l0 != r0:
indices.append(r0)
r0 //= 2
if l0 == r0:
break
indices.append(l0)
l0 //= 2
while r0:
indices.append(r0)
r0 //= 2
# propagation
for i in reversed(indices):
self.lazy[2*i] = self.foo(self.lazy[2*i], self.lazy[i])
self.lazy[2*i+1] = self.foo(self.lazy[2*i+1], self.lazy[i])
self.data[i] = self.fmo(self.data[i], self.lazy[i])
self.lazy[i] = self.oe
# effect
while l < r:
if l % 2:
self.lazy[l] = self.foo(self.lazy[l], operator)
l += 1
if r % 2:
r -= 1
self.lazy[r] = self.foo(self.lazy[r], operator)
l //= 2
r //= 2
# recalculation
for i in indices:
self.data[i] = self.fmm( self.fmo(self.data[2*i], self.lazy[2*i]), self.fmo(self.data[2*i+1], self.lazy[2*i+1]) )
self.lazy[i] = self.oe
def folded(self, l, r):
l += self.n
r += self.n
# preparing indices
indices = []
l0 = (l // (l & -l)) // 2
r0 = (r // (r & -r) - 1) // 2
while r0 > l0:
indices.append(r0)
r0 //= 2
while l0 > r0:
indices.append(l0)
l0 //= 2
while l0 and l0 != r0:
indices.append(r0)
r0 //= 2
if l0 == r0:
break
indices.append(l0)
l0 //= 2
while r0:
indices.append(r0)
r0 //= 2
# propagation
for i in reversed(indices):
self.lazy[2*i] = self.foo(self.lazy[2*i], self.lazy[i])
self.lazy[2*i+1] = self.foo(self.lazy[2*i+1], self.lazy[i])
self.data[i] = self.fmo(self.data[i], self.lazy[i])
self.lazy[i] = self.oe
# fold
left_folded = self.me
right_folded = self.me
while l < r:
if l % 2:
left_folded = self.fmm(left_folded, self.fmo(self.data[l], self.lazy[l]))
l += 1
if r % 2:
r -= 1
right_folded = self.fmm(self.fmo(self.data[r], self.lazy[r]), right_folded)
l //= 2
r //= 2
return self.fmm(left_folded, right_folded)
def main():
mod = 10**9+7
mod2 = 998244353
n,q=map(int, input().split())
lrb=[list(map(int, input().split())) for i in range(q)]
lrb.sort(key=lambda x:x[2])
seg=LazySegmentTree2([10**9]*n,10**9,-1,min,lambda x,y: x if y==-1 else y,lambda x,y: x if y==-1 else y)
for l,r,b in lrb:
seg.effect(l-1,r,b)
for l,r,b in lrb:
if seg.folded(l-1,r)!=b:
print(-1)
return
print(*[seg.folded(i,i+1) for i in range(n)])
if __name__ == '__main__':
main()
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