結果
問題 | No.1641 Tree Xor Query |
ユーザー | 👑 箱星 |
提出日時 | 2021-08-06 22:21:38 |
言語 | Kotlin (1.9.23) |
結果 |
RE
|
実行時間 | - |
コード長 | 4,619 bytes |
コンパイル時間 | 17,795 ms |
コンパイル使用メモリ | 459,484 KB |
実行使用メモリ | 81,228 KB |
最終ジャッジ日時 | 2023-10-17 03:46:12 |
合計ジャッジ時間 | 28,459 ms |
ジャッジサーバーID (参考情報) |
judge15 / judge13 |
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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 | 297 ms
51,960 KB |
testcase_01 | AC | 299 ms
51,968 KB |
testcase_02 | AC | 295 ms
51,948 KB |
testcase_03 | AC | 301 ms
51,996 KB |
testcase_04 | AC | 308 ms
52,076 KB |
testcase_05 | AC | 310 ms
52,068 KB |
testcase_06 | AC | 316 ms
52,072 KB |
testcase_07 | AC | 305 ms
52,036 KB |
testcase_08 | AC | 296 ms
51,964 KB |
testcase_09 | AC | 308 ms
52,016 KB |
testcase_10 | AC | 304 ms
52,024 KB |
testcase_11 | AC | 299 ms
51,972 KB |
testcase_12 | AC | 300 ms
51,988 KB |
testcase_13 | RE | - |
testcase_14 | RE | - |
testcase_15 | AC | 448 ms
58,152 KB |
testcase_16 | AC | 535 ms
60,388 KB |
testcase_17 | AC | 488 ms
58,992 KB |
testcase_18 | AC | 492 ms
59,560 KB |
testcase_19 | AC | 441 ms
59,996 KB |
testcase_20 | AC | 1,281 ms
81,228 KB |
ソースコード
import java.io.PrintWriter import java.util.* import kotlin.math.* fun PrintWriter.solve() { val n = nextInt() val q = nextInt() val c = Array(n) { nextInt() } val adj = Array(n) { mutableListOf<Int>() } for (i in 0 until n - 1) { val v1 = nextInt() - 1 val v2 = nextInt() - 1 adj[v1].add(v2) adj[v2].add(v1) } val tin = Array(n) { 0 } val tout = Array(n) { 0 } var time = 0 fun dfs(v: Int, p: Int) { tin[v] = time time++ for (w in adj[v]) { if (w != p) { dfs(w, v) } } tout[v] = time time++ } dfs(0, -1) val seg = SegTree(2 * n, Int::xor, 0) for (i in 0 until n) { seg[tin[i]] = c[i] } for (i in 0 until q) { val t = nextInt() val x = nextInt() - 1 val y = nextInt() if (t == 1) { seg[tin[x]] = seg[tin[x]] xor y } else { println(seg.prod(tin[x]..tout[x])) } } } class SegTree<Monoid>(private val n: Int, private val op: (Monoid, Monoid) -> Monoid, private val e: Monoid) { private var d: MutableList<Monoid> private var size = 1 private var log = 0 init { while (size < n) { size *= 2 log++ } d = MutableList(2 * size) { e } } constructor(a: Array<Monoid>, op: (Monoid, Monoid) -> Monoid, e: Monoid) : this(a.count(), op, e) { for (i in 0 until n) { d[size + i] = a[i] } for (i in size - 1 downTo 1) update(i) } operator fun set(p: Int, x: Monoid) { if (p !in 0 until n) { throw IllegalArgumentException() } val p1 = p + size d[p1] = x for (i in 1..log) { update(p1 shr i) } } operator fun get(p: Int): Monoid { if (p !in 0 until n) { throw IllegalArgumentException() } return d[p + size] } fun prod(range: IntRange): Monoid { val l = range.first val r = range.last + 1 if (l !in 0..r || r > n) { throw IllegalArgumentException() } var sml = e var smr = e var l1 = l + size var r1 = r + size while (l1 < r1) { if (l1 and 1 != 0) sml = op(sml, d[l1++]) if (r1 and 1 != 0) smr = op(d[--r1], smr) l1 /= 2 r1 /= 2 } return op(sml, smr) } fun allProd(): Monoid { return d[1] } fun maxRight(l: Int, f: (Monoid) -> Boolean): Int { if (l !in 0..n || !f(e)) { throw IllegalArgumentException() } if (l == n) return n var l1 = l + size var sm = e do { while (l1 % 2 == 0) l1 /= 2 if (!f(op(sm, d[l1]))) { while (l1 < size) { l1 *= 2 if (f(op(sm, d[l1]))) { sm = op(sm, d[l1]) l1++ } } return l1 - size } sm = op(sm, d[l1]) l1++ } while ((l1 and -l1) != l1) return n } fun minLeft(r: Int, f: (Monoid) -> Boolean): Int { if (r !in 0..n || !f(e)) { throw IllegalArgumentException() } if (r == 0) return 0 var r1 = r + size var sm = e do { r1-- while (r1 > 1 && r1 % 2 != 0) r1 /= 2 if (!f(op(d[r1], sm))) { while (r1 < size) { r1 = 2 * r1 + 1 if (f(op(d[r1], sm))) { sm = op(d[r1], sm) r1-- } } return r1 + 1 - size } sm = op(d[r1], sm) } while ((r1 and -r1) != r1) return 0 } private fun update(k: Int) { d[k] = op(d[2 * k], d[2 * k + 1]) } fun joinToString(s: String = ", "): String { return (0 until n).map { this[it] }.joinToString(s) } } fun main() { val writer = PrintWriter(System.out, false) writer.solve() writer.flush() } // region Scanner private var st = StringTokenizer("") private val br = System.`in`.bufferedReader() fun next(): String { while (!st.hasMoreTokens()) st = StringTokenizer(br.readLine()) return st.nextToken() } fun nextInt() = next().toInt() fun nextLong() = next().toLong() fun nextLine() = br.readLine() fun nextDouble() = next().toDouble() // endregion