結果

問題 No.631 Noelちゃんと電車旅行
ユーザー yuly3yuly3
提出日時 2020-09-07 21:50:06
言語 Nim
(2.0.2)
結果
CE  
(最新)
AC  
(最初)
実行時間 -
コード長 4,297 bytes
コンパイル時間 858 ms
コンパイル使用メモリ 72,712 KB
最終ジャッジ日時 2024-04-27 05:00:57
合計ジャッジ時間 1,744 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge2
このコードへのチャレンジ
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コンパイルエラー時のメッセージ・ソースコードは、提出者また管理者しか表示できないようにしております。（リジャッジ後のコンパイルエラーは公開されます）
ただし、clay言語の場合は開発者のデバッグのため、公開されます。

コンパイルメッセージ
/home/judge/data/code/Main.nim(133, 37) Error: type mismatch: got 'seq[int]' for 'map(split(input(), {' ', '\t', '\v', '\r', '\n', '\f'}, -1), parseInt)' but expected 'tuple'

ソースコード

diff # 

import algorithm, deques, heapqueue, math, sets, sequtils, strutils, sugar, tables

proc input*(): string =
    return stdin.readLine
proc chmax*[T: SomeNumber](num0: var T, num1: T) =
    num0 = max(num0, num1)
proc chmin*[T: SomeNumber](num0: var T, num1: T) =
    num0 = min(num0, num1)

proc bit_length(n: Natural): Natural =
    const BIT_SIZE = 60
    if n == 0:
      return 0
    let s = toBin(n, BIT_SIZE)
    return BIT_SIZE - s.find('1')


type
    LazySegmentTree*[T] = ref object
        LV: Natural
        N0: Positive
        ide_ele, lazy_ide_ele: T
        data, lazy_data: seq[T]
        segfunc: proc (a, b: T): T

proc initLazySegmentTree*[T](size: Positive, ide_ele, lazy_ide_ele: T, f: proc (a, b: T): T): LazySegmentTree[T] =
    var
        LV = bit_length(size - 1)
        N0 = 1 shl LV
        data = newSeqWith(2*N0, ide_ele)
        lazy_data = newSeqWith(2*N0, lazy_ide_ele)
    return LazySegmentTree[T](LV: LV, N0: N0, ide_ele: ide_ele, lazy_ide_ele: lazy_ide_ele, data: data, lazy_data: lazy_data, segfunc: f)

proc toLazySegmentTree*[T](init_value: openArray[T], ide_ele, lazy_ide_ele: T, f: proc (a, b: T): T): LazySegmentTree[T] =
    var
        LV = bit_length(init_value.len - 1)
        N0 = 1 shl LV
        data = newSeqWith(2*N0, ide_ele)
        lazy_data = newSeqWith(2*N0, lazy_ide_ele)
    for i, x in init_value:
        data[i + N0 - 1] = x
    for i in countdown(N0 - 2, 0):
        data[i] = f(data[2*i + 1], data[2*i + 2])
    return LazySegmentTree[T](LV: LV, N0: N0, ide_ele: ide_ele, lazy_ide_ele: lazy_ide_ele, data: data, lazy_data: lazy_data, segfunc: f)

iterator gindex*[T](self: var LazySegmentTree[T], left, right: Natural): Natural =
    var
        L = (left + self.N0) shr 1
        R = (right + self.N0) shr 1
        lc = if (left and 1) == 1: 0 else: bit_length(L and -L)
        rc = if (right and 1) == 1: 0 else: bit_length(R and -R)
    for i in 0..<self.LV:
        if rc <= i:
            yield R
        if L < R and lc <= i:
            yield L
        L = L shr 1
        R = R shr 1

proc propagates*[T](self: var LazySegmentTree[T], ids: seq[Natural]) =
    var
        idx: Natural
        v: T
    for id in reversed(ids):
        idx = id - 1
        v = self.lazy_data[idx]
        if v == self.lazy_ide_ele:
            continue
        self.data[2*idx + 1] += v
        self.data[2*idx + 2] += v
        self.lazy_data[2*idx + 1] += v
        self.lazy_data[2*idx + 2] += v
        self.lazy_data[idx] = self.lazy_ide_ele

proc update*[T](self: var LazySegmentTree[T], left, right: Natural, x: T) =
    let ids = toSeq(self.gindex(left, right))
    # self.propagates(ids)
    var
        L = left + self.N0
        R = right + self.N0
    
    while L < R:
        if (L and 1) == 1:
            self.lazy_data[L - 1] += x
            self.data[L - 1] += x
            inc L
        if (R and 1) == 1:
            dec R
            self.lazy_data[R - 1] += x
            self.data[R - 1] += x
        L = L shr 1
        R = R shr 1
    var idx: Natural
    for id in ids:
        idx = id - 1
        self.data[idx] = self.segfunc(self.data[2*idx + 1], self.data[2*idx + 2]) + self.lazy_data[idx]

proc query*[T](self: var LazySegmentTree[T], left, right: Natural): T =
    self.propagates(toSeq(self.gindex(left, right)))
    var
        L = left + self.N0
        R = right + self.N0
        res = self.ide_ele
    
    while L < R:
        if (L and 1) == 1:
            res = self.segfunc(res, self.data[L - 1])
            inc L
        if (R and 1) == 1:
            dec R
            res = self.segfunc(res, self.data[R - 1])
        L = L shr 1
        R = R shr 1
    return res


var
    init_val, ans: seq[int]
    lazy_seg_tree: LazySegmentTree[int]

proc solve() =
    let N = input().parseInt

    init_val = input().split.map(parseInt)
    for i, k in toSeq(countdown(N - 1, 1)):
        init_val[i] += 3*k
    lazy_seg_tree = toLazySegmentTree(init_val, 0, 0, (a, b) => max(a, b))

    let M = input().parseInt
    ans = newSeq[int](M)
    var li, ri, di: int
    for i in 0..<M:
        (li, ri, di) = input().split.map(parseInt)
        dec li
        lazy_seg_tree.update(li, ri, di)
        ans[i] = (lazy_seg_tree.query(0, N - 1))
    echo ans.join("\n")

when is_main_module:
    solve()
0