結果
| 問題 |
No.1441 MErGe
|
| コンテスト | |
| ユーザー |
 yakamoto
|
| 提出日時 | 2021-03-26 22:17:30 |
| 言語 | Kotlin (2.1.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 8,801 bytes |
| コンパイル時間 | 20,911 ms |
| コンパイル使用メモリ | 466,240 KB |
| 実行使用メモリ | 201,424 KB |
| 最終ジャッジ日時 | 2024-11-28 23:43:08 |
| 合計ジャッジ時間 | 56,392 ms |
|
ジャッジサーバーID （参考情報） |
judge1 / judge2 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 2 WA * 10 TLE * 16 |
コンパイルメッセージ
Main.kt:33:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
private inline fun fx(x1: Int, x2: Int) = x1 + x2
^
Main.kt:34:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
private inline fun ap(x: Int, m: Int) = m
^
Main.kt:34:25: warning: parameter 'x' is never used
private inline fun ap(x: Int, m: Int) = m
^
Main.kt:35:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
private inline fun fm(m1: Int, m2: Int) = m2
^
Main.kt:35:25: warning: parameter 'm1' is never used
private inline fun fm(m1: Int, m2: Int) = m2
^
Main.kt:36:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
private inline fun fp(m: Int, n: Int) = m*n
^
Main.kt:39:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
private inline fun contains(k: Int, x: Int): Boolean = false
^
Main.kt:39:31: warning: parameter 'k' is never used
private inline fun contains(k: Int, x: Int): Boolean = false
^
Main.kt:39:39: warning: parameter 'x' is never used
private inline fun contains(k: Int, x: Int): Boolean = false
^
Main.kt:86:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
private inline fun push(k: Int, len: Int) {
^
Main.kt:323:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
ソースコード
import java.io.BufferedReader
import java.io.InputStream
import java.io.InputStreamReader
import java.lang.AssertionError
import java.util.*
import kotlin.math.abs
import kotlin.math.max
import kotlin.math.min
val MOD = 1_000_000_007
class DelayMergeTree(val n: Int) {
/*
fx: x同士の結合
fa: mをxに作用させる
fm: 作用素を結合
fp: (x1 + x2)*fp(m, n) == x1*fp(m, n/2) + x2*fp(m, n/2) <- fxが+だったらm*n
(+, +)
↓の実装は区間sum、更新はaddの場合
*/
// private inline fun fx(x1: Int, x2: Int) = x1 + x2
// private inline fun ap(x: Int, m: Int) = x + m
// private inline fun fm(m1: Int, m2: Int) = m1 + m2
// private inline fun fp(m: Int, n: Int) = m*n
// private val zeroX = 0L
// private val zeroM = 0L
// private inline fun contains(k: Int, x: Int): Boolean = false
/*
(+, 入れ替え)
*/
private inline fun fx(x1: Int, x2: Int) = x1 + x2
private inline fun ap(x: Int, m: Int) = m
private inline fun fm(m1: Int, m2: Int) = m2
private inline fun fp(m: Int, n: Int) = m*n
private val zeroX = 0
private val zeroM = -1
private inline fun contains(k: Int, x: Int): Boolean = false
/*
(min, 入れ替え)
こちらはmin、更新は入れ替えの場合
更新のところにifいらないかも
*/
// private inline fun fx(x1: Int, x2: Int) = min(x1, x2)
// private inline fun ap(x: Int, m: Int) = if (m == zeroM) x else m
// private inline fun fm(m1: Int, m2: Int) = if (m2 == zeroM) m1 else m2
// private inline fun fp(m: Int, n: Int) = m
// private val inf = 2e18.toInt() + 100
// private val zeroX = inf
// private val zeroM = inf
// private inline fun contains(k: Int, x: Int): Boolean = value[k] < x
/*
(max, +)
*/
// private inline fun fx(x1: Int, x2: Int) = max(x1, x2)
// private inline fun ap(x: Int, m: Int) = x + m
// private inline fun fm(m1: Int, m2: Int) = m1 + m2
// private inline fun fp(m: Int, n: Int) = m
// private val inf = 0L // マイナスありなら -(2e18.toInt + 100)
// private val zeroX = inf
// private val zeroM = inf
// private inline fun contains(k: Int, x: Int): Boolean = value[k] > x
/*
(xor, 入れ替え)
*/
// private inline fun fx(x1: Int, x2: Int) = x1 or x2
// private inline fun ap(x: Int, m: Int) = m
// private inline fun fm(m1: Int, m2: Int) = m2
// private inline fun fp(m: Int, n: Int) = m
// private val zeroX = 0L
// private val zeroM = 0L
// private inline fun contains(k: Int, x: Int): Boolean = false // min/maxじゃないと使えない
private val N =
if (Integer.highestOneBit(n) == n) n
else Integer.highestOneBit(n) shl 1
// zeroX, zeroMよりも前にあると初期化できなくなるので注意
private val value = IntArray(N * 2){zeroX}
private val delay = IntArray(N * 2){zeroM}
private inline fun push(k: Int, len: Int) {
if (delay[k] == zeroM) return
if (k < N) {
delay[k * 2] = fm(delay[k * 2], delay[k])
delay[k * 2 + 1] = fm(delay[k * 2 + 1], delay[k])
}
value[k] = ap(value[k], fp(delay[k], len))
delay[k] = zeroM
}
fun build(A: IntArray) {
for (i in A.indices) {
value[N + i] = A[i]
}
for (k in N - 1 downTo 0) {
value[k] = fx(value[k*2], value[k*2 + 1])
}
}
/**
* [a, b)
*/
fun apply(a: Int, b: Int, x: Int, k: Int = 1, l: Int = 0, r: Int = N) {
push(k, r - l)
if (a >= r || l >= b) return // ノードが範囲からはずれてる
if (a <= l && r <= b) { // ノードが完全に範囲に含まれる
delay[k] = fm(delay[k], x)
push(k, r - l)
return
}
val m = (l + r) / 2
val lft = k * 2
val rgt = lft + 1
apply(a, b, x, lft, l, m)
apply(a, b, x, rgt, m, r)
value[k] = fx(value[lft], value[rgt])
}
/**
* [a, b)
*/
fun prod(a: Int, b: Int, k: Int = 1, l: Int = 0, r: Int = N): Int {
push(k, r - l)
if (a >= r || l >= b) return zeroX // ノードが範囲からはずれてる
if (a <= l && r <= b) { // ノードが完全に範囲に含まれる
return value[k]
}
val m = (l + r) / 2
val lft = k * 2
val rgt = lft + 1
return fx(prod(a, b, lft, l, m), prod(a, b, rgt, m, r))
}
fun get(i: Int): Int {
_eval(N + i, N)
return value[N + i]
}
/**
* @param x 左右どちらからか最初に contains になる場所を探す。containsはfxがmin/maxかで違う
* @param fromR 右から探すか
* @return 見つからなかったら -1
*/
fun query(x: Int, k: Int = 1, l: Int = 0, r: Int = N, fromR: Boolean = true): Int {
push(k, r - l)
if (!contains(k, x)) return -1
if (l + 1 == r) return l
val m = (l + r) / 2
val lft = k * 2
val rgt = lft + 1
if (fromR) {
val ans = query(x, rgt, m, r, fromR)
if (ans != -1) return ans
return query(x, lft, l, m, fromR)
}
else {
val ans = query(x, lft, l, m, fromR)
if (ans != -1) return ans
return query(x, rgt, m, r, fromR)
}
}
/**
* @return 最初にvalue>=xになるindexを返す。0-indexed 見つからなかったら n
* fxがsum かつ 値に負がないことが条件
*/
fun lowerBound(x: Int, k: Int = 1, l: Int = 0, r: Int = N): Int {
push(k, r - l)
if (value[k] < x) return -1
if (l + 1 == r) return l
val m = (l + r) / 2
val lft = k * 2
val rgt = lft + 1
val ans = lowerBound(x, lft, l, m)
if (ans != -1) return ans
return lowerBound(x - value[lft], rgt, m, r)
}
fun _eval(k: Int, len: Int) {
if (k > 1) {
_eval(k / 2, len/2)
}
push(k, len)
}
fun inspect() = run { Pair(value, delay) }
}
class Solver(stream: InputStream, private val out: java.io.PrintWriter) {
private val reader = BufferedReader(InputStreamReader(stream), 32768)
fun solve() {
val N = ni()
val Q = ni()
val A = na(N)
val S = LongArray(N + 1)
for (i in 0 until N) {
S[i + 1] = S[i] + A[i]
}
val tree = DelayMergeTree(N)
tree.build(IntArray(N){1})
for (q in 0 until Q) {
val type = ni()
val l0 = ni()
val r0 = ni()
val l = tree.lowerBound(l0)
val r = tree.lowerBound(r0)
when(type) {
1 -> {
tree.apply(l + 1, r + 1, 0)
}
else -> {
val ans = S[r + 1] - S[l]
out.println(ans)
}
}
}
}
private val isDebug = try {
// なんか本番でエラーでる
System.getenv("MY_DEBUG") != null
} catch (t: Throwable) {
false
}
private var tokenizer: StringTokenizer? = null
private fun next(): String {
while (tokenizer == null || !tokenizer!!.hasMoreTokens()) {
tokenizer = StringTokenizer(reader.readLine())
}
return tokenizer!!.nextToken()
}
private fun ni() = next().toInt()
private fun nl() = next().toLong()
private fun ns() = next()
private fun na(n: Int, offset: Int = 0): IntArray {
return IntArray(n) { ni() + offset }
}
private fun nal(n: Int, offset: Int = 0): LongArray {
val res = LongArray(n)
for (i in 0 until n) {
res[i] = nl() + offset
}
return res
}
private fun na2(n: Int, offset: Int = 0): Array<IntArray> {
val a = Array(2){IntArray(n)}
for (i in 0 until n) {
for (e in a) {
e[i] = ni() + offset
}
}
return a
}
private inline fun debug(msg: () -> String) {
if (isDebug) System.err.println(msg())
}
/**
* コーナーケースでエラー出たりするので、debug(dp[1])のように添え字付きの場合はdebug{}をつかうこと
*/
private inline fun debug(a: LongArray) {
debug { a.joinToString(" ") }
}
private inline fun debug(a: IntArray) {
debug { a.joinToString(" ") }
}
private inline fun debug(a: BooleanArray) {
debug { toString(a) }
}
private inline fun toString(a: BooleanArray) = run{a.map { if (it) 1 else 0 }.joinToString("")}
private inline fun debugDim(A: Array<LongArray>) {
if (isDebug) {
for (a in A) {
debug(a)
}
}
}
private inline fun debugDim(A: Array<IntArray>) {
if (isDebug) {
for (a in A) {
debug(a)
}
}
}
private inline fun debugDim(A: Array<BooleanArray>) {
if (isDebug) {
for (a in A) {
debug(a)
}
}
}
/**
* 勝手にimport消されるのを防ぎたい
*/
private fun hoge() {
min(1, 2)
max(1, 2)
abs(-10)
}
private inline fun assert(b: Boolean) = run{if (!b) throw AssertionError()}
private inline fun assert(b: Boolean, f: () -> String) = run{if (!b) throw AssertionError(f())}
}
fun main() {
val out = java.io.PrintWriter(System.out)
Solver(System.`in`, out).solve()
out.flush()
}