結果
問題 | No.1391 ±1 Abs Sum |
ユーザー | yakamoto |
提出日時 | 2021-02-12 22:33:39 |
言語 | Kotlin (1.9.23) |
結果 |
AC
|
実行時間 | 484 ms / 2,000 ms |
コード長 | 3,755 bytes |
コンパイル時間 | 22,477 ms |
コンパイル使用メモリ | 441,800 KB |
実行使用メモリ | 66,884 KB |
最終ジャッジ日時 | 2023-09-27 05:16:58 |
合計ジャッジ時間 | 31,041 ms |
ジャッジサーバーID (参考情報) |
judge14 / judge15 |
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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 | 239 ms
50,496 KB |
testcase_01 | AC | 275 ms
56,808 KB |
testcase_02 | AC | 241 ms
50,544 KB |
testcase_03 | AC | 234 ms
50,432 KB |
testcase_04 | AC | 232 ms
50,396 KB |
testcase_05 | AC | 233 ms
50,292 KB |
testcase_06 | AC | 248 ms
50,684 KB |
testcase_07 | AC | 236 ms
50,400 KB |
testcase_08 | AC | 245 ms
50,516 KB |
testcase_09 | AC | 236 ms
50,204 KB |
testcase_10 | AC | 244 ms
50,332 KB |
testcase_11 | AC | 439 ms
60,644 KB |
testcase_12 | AC | 429 ms
58,060 KB |
testcase_13 | AC | 438 ms
60,596 KB |
testcase_14 | AC | 423 ms
58,104 KB |
testcase_15 | AC | 420 ms
58,268 KB |
testcase_16 | AC | 431 ms
58,404 KB |
testcase_17 | AC | 421 ms
58,208 KB |
testcase_18 | AC | 446 ms
60,376 KB |
testcase_19 | AC | 424 ms
58,120 KB |
testcase_20 | AC | 423 ms
60,476 KB |
testcase_21 | AC | 413 ms
58,348 KB |
testcase_22 | AC | 429 ms
58,656 KB |
testcase_23 | AC | 428 ms
58,524 KB |
testcase_24 | AC | 412 ms
58,212 KB |
testcase_25 | AC | 428 ms
58,504 KB |
testcase_26 | AC | 423 ms
58,336 KB |
testcase_27 | AC | 402 ms
55,988 KB |
testcase_28 | AC | 409 ms
56,016 KB |
testcase_29 | AC | 404 ms
58,288 KB |
testcase_30 | AC | 432 ms
58,268 KB |
testcase_31 | AC | 444 ms
60,336 KB |
testcase_32 | AC | 465 ms
60,044 KB |
testcase_33 | AC | 482 ms
60,816 KB |
testcase_34 | AC | 484 ms
60,740 KB |
testcase_35 | AC | 272 ms
56,824 KB |
testcase_36 | AC | 482 ms
66,884 KB |
コンパイルメッセージ
Main.kt:154:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types private inline fun debug(a: LongArray) { ^ Main.kt:158:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types private inline fun debug(a: IntArray) { ^ Main.kt:162:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types private inline fun debug(a: BooleanArray) { ^ Main.kt:166:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types private inline fun toString(a: BooleanArray) = run{a.map { if (it) 1 else 0 }.joinToString("")} ^ Main.kt:168:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types private inline fun debugDim(A: Array<LongArray>) { ^ Main.kt:175:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types private inline fun debugDim(A: Array<IntArray>) { ^ Main.kt:182:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types private inline fun debugDim(A: Array<BooleanArray>) { ^ Main.kt:199:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types private inline fun assert(b: Boolean) = run{if (!b) throw AssertionError()} ^
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 Solver(stream: InputStream, private val out: java.io.PrintWriter) { private val reader = BufferedReader(InputStreamReader(stream), 32768) private val N = ni() private val K = ni() private val A = nal(N) fun solve() { fun sumL() = (0 until N).map{A[it] - A[0]}.sum() fun sumR() = (0 until N).map{A.last() - A[it]}.sum() if (K == N) { val ans = (0 until N).map{abs(A[N/2] - A[it])}.sum() out.println(ans) return } if (K == 0) { out.println(min(-sumL(), -sumR())) return } var lsum = 0L var lcnt = 0 var rsum = 0L var sum = 0L for (i in 1 until N) { sum += A[i] - A[0] } for (i in K until N) { rsum += A[i] - A[0] } var rcnt = N - K var l = -1 var r = K debug{"$sum $rsum $rcnt"} var ans = sum - lsum*2-rsum*2 for (i in 1 until N) { val lstMove = A[i] - A[i-1] lsum += lcnt*lstMove rsum -= rcnt*lstMove sum += i*lstMove - (N - i)*lstMove while (i >= r || (l + 1 < i && r < N && abs(A[l + 1] - A[i]) > abs(A[r] - A[i]))) { lcnt++ rcnt-- lsum += abs(A[l + 1] - A[i]) rsum -= abs(A[r] - A[i]) l++ r++ } val v = sum - lsum*2-rsum*2 debug{"$i $sum $l:$r $lsum $lcnt $rsum $rcnt $v"} ans = min(ans, v) } 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()) } 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()} } fun main() { val out = java.io.PrintWriter(System.out) Solver(System.`in`, out).solve() out.flush() }