結果

問題 No.631 Noelちゃんと電車旅行
ユーザー brthyyjpbrthyyjp
提出日時 2021-03-03 11:23:00
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 587 ms / 2,000 ms
コード長 2,916 bytes
コンパイル時間 256 ms
コンパイル使用メモリ 82,128 KB
実行使用メモリ 106,624 KB
最終ジャッジ日時 2024-10-02 09:49:59
合計ジャッジ時間 10,236 ms
ジャッジサーバーID
(参考情報)
judge1 / judge2
このコードへのチャレンジ
(要ログイン)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 437 ms
81,372 KB
testcase_01 AC 567 ms
106,624 KB
testcase_02 AC 563 ms
106,624 KB
testcase_03 AC 587 ms
106,496 KB
testcase_04 AC 576 ms
106,496 KB
testcase_05 AC 568 ms
106,496 KB
testcase_06 AC 353 ms
86,784 KB
testcase_07 AC 269 ms
89,472 KB
testcase_08 AC 512 ms
99,968 KB
testcase_09 AC 528 ms
91,520 KB
testcase_10 AC 450 ms
99,584 KB
testcase_11 AC 395 ms
92,948 KB
testcase_12 AC 451 ms
101,960 KB
testcase_13 AC 457 ms
82,944 KB
testcase_14 AC 305 ms
80,328 KB
testcase_15 AC 407 ms
84,096 KB
testcase_16 AC 44 ms
58,496 KB
testcase_17 AC 44 ms
57,856 KB
testcase_18 AC 44 ms
58,880 KB
testcase_19 AC 44 ms
57,984 KB
testcase_20 AC 44 ms
58,368 KB
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 #

class LazySegTree:
    # RMQ and RAQ
    def __init__(self, init_val, seg_ide, lazy_ide, segfunc):
        self.n = len(init_val)
        self.num = 2**(self.n-1).bit_length()

        self.seg_ide = seg_ide
        self.lazy_ide = lazy_ide

        self.segfunc = segfunc

        # seg, lazy: 1-indexed
        self.seg = [seg_ide]*2*self.num
        for i in range(self.n):
            self.seg[i+self.num] = init_val[i]
        for i in range(self.num-1, 0, -1):
            self.seg[i] = self.segfunc(self.seg[2*i], self.seg[2*i+1])

        self.lazy = [lazy_ide]*2*self.num

    def gindex(self, l, r):
        # l, r: 1-indexed
        L = l + self.num
        R = r + self.num
        lm = (L // (L & -L)) >> 1
        rm = (R // (R & -R)) >> 1
        while L < R:
            if R <= rm:
                yield R
            if L <= lm:
                yield L
            L = L >> 1
            R = R >> 1
        while L:
            yield L
            L = L >> 1

    def propagate(self, *ids):
        # ids: 1-indexed
        for i in reversed(ids):
            v = self.lazy[i]
            if v == self.lazy_ide:
                continue
            self.lazy[2*i] += v
            self.lazy[2*i+1] += v
            self.seg[2*i] += v
            self.seg[2*i+1] += v
            self.lazy[i] = self.lazy_ide

    def update(self, l, r, x):
        # l, r: 0-indexed
        # add x to [l, r)
        L = l + self.num
        R = r + self.num
        while L < R:
            if R & 1:
                R -= 1
                self.lazy[R] += x
                self.seg[R] += x
            if L & 1:
                self.lazy[L] += x
                self.seg[L] += x
                L += 1
            L = L >> 1
            R = R >> 1
        for i in self.gindex(l, r):
            # i: 1-indexed
            self.seg[i] = self.segfunc(self.seg[2*i], self.seg[2*i+1]) + self.lazy[i]

    def query(self, l, r):
        # l, r: 0-indexed
        # query for [l, r)
        if r <= l:
            return self.seg_ide

        self.propagate(*self.gindex(l, r))
        L = l + self.num
        R = r + self.num
        res = self.seg_ide
        while L < R:
            if R & 1:
                R -= 1
                res = self.segfunc(res, self.seg[R])
            if L & 1:
                res = self.segfunc(self.seg[L], res)
                L += 1
            L = L >> 1
            R = R >> 1
        return res

    def __str__(self): # for debug
        arr = [self.query(i,i+1) for i in range(self.n)]
        return str(arr)

import sys
import io, os
input = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline

n = int(input())
T = list(map(int, input().split()))
T = [t+3*(n-1-i) for i, t in enumerate(T)]
seg = LazySegTree(T, 0, 0, max)
m = int(input())
for i in range(m):
    l, r, d = map(int, input().split())
    l, r = l-1, r-1
    seg.update(l, r+1, d)
    print(seg.query(0, n))
0