結果
| 問題 | No.1299 Random Array Score |
| ユーザー |
 da_louis
|
| 提出日時 | 2020-11-27 22:27:27 |
| 言語 | Kotlin (1.9.23) |
| 結果 |
AC
|
| 実行時間 | 425 ms / 2,000 ms |
| コード長 | 29,184 bytes |
| コンパイル時間 | 23,504 ms |
| コンパイル使用メモリ | 495,280 KB |
| 実行使用メモリ | 52,268 KB |
| 最終ジャッジ日時 | 2024-07-26 18:46:15 |
| 合計ジャッジ時間 | 37,683 ms |
|
ジャッジサーバーID （参考情報） |
judge4 / judge2 |
（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 | 272 ms
50,428 KB |
| testcase_01 | AC | 271 ms
50,524 KB |
| testcase_02 | AC | 271 ms
50,328 KB |
| testcase_03 | AC | 425 ms
52,168 KB |
| testcase_04 | AC | 380 ms
52,088 KB |
| testcase_05 | AC | 335 ms
51,956 KB |
| testcase_06 | AC | 341 ms
51,652 KB |
| testcase_07 | AC | 348 ms
51,620 KB |
| testcase_08 | AC | 329 ms
52,108 KB |
| testcase_09 | AC | 299 ms
50,628 KB |
| testcase_10 | AC | 301 ms
51,112 KB |
| testcase_11 | AC | 307 ms
50,700 KB |
| testcase_12 | AC | 308 ms
51,596 KB |
| testcase_13 | AC | 373 ms
52,132 KB |
| testcase_14 | AC | 361 ms
51,572 KB |
| testcase_15 | AC | 351 ms
51,756 KB |
| testcase_16 | AC | 314 ms
51,656 KB |
| testcase_17 | AC | 281 ms
50,528 KB |
| testcase_18 | AC | 293 ms
51,004 KB |
| testcase_19 | AC | 302 ms
51,276 KB |
| testcase_20 | AC | 304 ms
51,092 KB |
| testcase_21 | AC | 290 ms
50,476 KB |
| testcase_22 | AC | 290 ms
50,624 KB |
| testcase_23 | AC | 307 ms
51,804 KB |
| testcase_24 | AC | 308 ms
52,084 KB |
| testcase_25 | AC | 313 ms
51,676 KB |
| testcase_26 | AC | 283 ms
50,508 KB |
| testcase_27 | AC | 294 ms
50,784 KB |
| testcase_28 | AC | 298 ms
50,924 KB |
| testcase_29 | AC | 298 ms
50,716 KB |
| testcase_30 | AC | 317 ms
51,672 KB |
| testcase_31 | AC | 294 ms
50,872 KB |
| testcase_32 | AC | 314 ms
52,156 KB |
| testcase_33 | AC | 320 ms
52,248 KB |
| testcase_34 | AC | 309 ms
52,140 KB |
| testcase_35 | AC | 314 ms
52,268 KB |
| testcase_36 | AC | 310 ms
52,212 KB |
コンパイルメッセージ
Main.kt:62:13: warning: 'appendln(Int): kotlin.text.StringBuilder /* = java.lang.StringBuilder */' is deprecated. Use appendLine instead. Note that the new method always appends the line feed character '\n' regardless of the system line separator.
appendln(n)
^
Main.kt:95:48: warning: 'toByte(): Byte' is deprecated. Conversion of Char to Number is deprecated. Use Char.code property instead.
private fun Byte.isNumeric() = this in '0'.toByte()..'9'.toByte()
^
Main.kt:95:62: warning: 'toByte(): Byte' is deprecated. Conversion of Char to Number is deprecated. Use Char.code property instead.
private fun Byte.isNumeric() = this in '0'.toByte()..'9'.toByte()
^
Main.kt:96:68: warning: 'toByte(): Byte' is deprecated. Conversion of Char to Number is deprecated. Use Char.code property instead.
private fun Byte.toNumVal() = if (this.isNumeric()) this - '0'.toByte() else error("$this is not numeric")
^
Main.kt:128:22: warning: 'toByte(): Byte' is deprecated. Conversion of Char to Number is deprecated. Use Char.code property instead.
if (b == '-'.toByte()) {
^
Main.kt:154:22: warning: 'toByte(): Byte' is deprecated. Conversion of Char to Number is deprecated. Use Char.code property instead.
if (b == '-'.toByte()) {
^
Main.kt:160:22: warning: 'toByte(): Byte' is deprecated. Conversion of Char to Number is deprecated. Use Char.code property instead.
if (b == '.'.toByte()) {
^
ソースコード
import java.io.ByteArrayInputStream
import java.io.ByteArrayOutputStream
import java.io.PrintStream
fun main() = if (localEnv && execChecker) checker() else contest276b()
fun contest276b() = solve()
@OptIn(ExperimentalStdlibApi::class)
private fun solve() = Messiah_contest276b(MOD).exec {
val (n, k) = readInt() to readLong()
val aList = readLong(n)
val sum = aList.fold(0L) { acc, i -> (acc+i)%MOD }
val answer = (sum*(2L).modPow(k))%MOD
println(answer)
}
private infix fun Long.modPow(p: Long): Long {
var x = this % MOD
var y = p
var result = 1L
while (y > 0) {
if (y % 2 == 1L) result = (result * x) % MOD
y = y shr 1
x = (x * x) % MOD
}
return result
}
private const val MOD = 998244353
// region kokokara template dayo (^o^)
private const val execChecker = false
private val localEnv = "ENABLE_DEBUG_MODE_FOR_COMPETITIVE_PROGRAMING" in System.getenv()
private fun checker() = Messiah_contest276b(MOD).exec {
debugln("#######################################################")
debugln("############### executing check mode. ###############")
debugln("#######################################################")
fun getOutPut(input: String, action: () -> Unit): String {
System.setIn(ByteArrayInputStream(input.toByteArray()))
val sysOut = ByteArrayOutputStream()
System.setOut(PrintStream(sysOut))
action()
return sysOut.toString()
}
val wrongCases = mutableSetOf<List<String>>()
while (wrongCases.size < 10) {
/*
examples
val randomString = (1..20).map { ('a'..'z').random() }.joinToString("")
val randomNum = Random.nextInt(0,2000)
*/
val n = 0
val input = buildString {
appendln(n)
}
val solve = getOutPut(input, ::solve)
val greedy = getOutPut(input, ::greedy)
if (solve != greedy && wrongCases.add(listOf(solve, greedy))) {
debugln("#################### wrong case: ${wrongCases.size} ####################")
debugln("input:")
debugln(input)
debugln("solve:")
debugln(solve)
debugln("greedy:")
debugln(greedy)
}
}
}
private fun greedy() = Messiah_contest276b(MOD).exec {
TODO()
}
@Suppress("ClassName", "unused", "FunctionName", "PropertyName")
private class Messiah_contest276b(mod: Int) {
//////////////////////////////////////////////////
// IO
//////////////////////////////////////////////////
private val input = System.`in`
private val buffer = ByteArray(1024)
private var pointer = 0
private var bufferLength = 0
private val sb = StringBuilder()
private fun Byte.isPrintable() = this in 33..126
private fun Byte.isNumeric() = this in '0'.toByte()..'9'.toByte()
private fun Byte.toNumVal() = if (this.isNumeric()) this - '0'.toByte() else error("$this is not numeric")
private val lineSeparator: String = System.lineSeparator()
private fun hasNextByte(): Boolean {
return if (pointer < bufferLength) true else {
pointer = 0
bufferLength = input.read(buffer)
bufferLength > 0
}
}
private fun readByte(): Byte = if (hasNextByte()) buffer[pointer++] else -1
private fun skipUnprintable() = run { while (hasNextByte() && !buffer[pointer].isPrintable()) pointer++ }
private fun hasNext(): Boolean = run { skipUnprintable() }.run { hasNextByte() }
private fun hasNextOrError() = if (!hasNext()) error("has no next element.") else Unit
fun readString(): String {
hasNextOrError()
val sb = StringBuilder()
var b = readByte()
while (b.isPrintable()) {
sb.appendCodePoint(b.toInt())
b = readByte()
}
return sb.toString()
}
fun readLong(): Long {
hasNextOrError()
var n = 0L
var negative = false
var b = readByte()
if (b == '-'.toByte()) {
negative = true
b = readByte()
}
if (!b.isNumeric()) error("$b is not numeric.")
while (true) {
when {
b.isNumeric() -> n = n * 10 + b.toNumVal()
b.toInt() == -1 || !b.isPrintable() -> return if (negative) -n else n
else -> error("failed to parse. [n=$n, b=$b]")
}
b = readByte()
}
}
fun readInt() = readLong()
.let { if (it in Int.MIN_VALUE..Int.MAX_VALUE) it.toInt() else error("$it is not in range of Int.") }
fun readIntAsIndex() = readInt().dec()
fun readDouble(): Double {
hasNextOrError()
var n = 0.0
var div = 1.0
var negative = false
var b = readByte()
if (b == '-'.toByte()) {
negative = true
b = readByte()
}
do n = n * 10 + b.toNumVal()
while (run { b = readByte() }.run { b.isNumeric() })
if (b == '.'.toByte()) {
while (run { b = readByte() }.run { b.isNumeric() })
n += b.toNumVal() / (run { div *= 10 }.run { div })
}
return if (negative) -n else n
}
fun readString(size: Int): Array<String> = Array(size) { readString() }
@Suppress("UNUSED_PARAMETER")
fun readChars(h: Int, w: Int): Array<CharArray> = Array(h) { readString().toCharArray() }
fun readLong(size: Int): LongArray = LongArray(size) { readLong() }
fun readLong(h: Int, w: Int): Array<LongArray> = Array(h) { readLong(w) }
fun readInt(size: Int): IntArray = IntArray(size) { readInt() }
fun readInt(h: Int, w: Int): Array<IntArray> = Array(h) { readInt(w) }
fun readIntAsIndex(size: Int): IntArray = IntArray(size) { readIntAsIndex() }
fun readIntAsIndex(h: Int, w: Int): Array<IntArray> = Array(h) { readIntAsIndex(w) }
fun readDouble(size: Int): DoubleArray = DoubleArray(size) { readDouble() }
fun readDouble(h: Int, w: Int): Array<DoubleArray> = Array(h) { readDouble(w) }
fun readBooleanWithSeparator(size: Int, trueElement: String): BooleanArray =
BooleanArray(size) { readString() == trueElement }
fun readBooleanWithSeparator(h: Int, w: Int, trueElement: String): Array<BooleanArray> =
Array(h) { readBooleanWithSeparator(w, trueElement) }
@Suppress("UNUSED_PARAMETER")
fun readBooleanWithoutSeparator(size: Int, trueElement: Char): BooleanArray =
readString().map { it == trueElement }.toBooleanArray()
fun readBooleanWithoutSeparator(h: Int, w: Int, trueElement: Char): Array<BooleanArray> =
Array(h) { readBooleanWithoutSeparator(w, trueElement) }
fun println(): Unit = run { sb.append(lineSeparator) }
fun print(any: Any): Unit = run { sb.append(any.toString()) }
fun println(any: Any): Unit = run { sb.append(any.toString() + lineSeparator) }
fun flush() = run { kotlin.io.println(sb); sb.clear() }
fun debugln(any: Any): Unit = run { if (localEnv) System.err.println(any) }
fun debugln(): Unit = run { if (localEnv) System.err.println() }
fun debugln(action: () -> Unit): Unit = run { if (localEnv) action() }
fun exec(action: Messiah_contest276b.() -> Unit) {
var t: Throwable? = null
Thread(null, { action() }, "sandbox.test.solve", 128 * 1024 * 1024)
.apply { setUncaughtExceptionHandler { _, t1 -> t = t1 } }
.apply { start() }.join()
t?.let { throw it }
kotlin.io.print(sb)
}
fun readLine(): Nothing = error("readLine is disabled.")
//////////////////////////////////////////////////
// Mod
//////////////////////////////////////////////////
class ModIntFactory(private val mod: Int) {
private val ma = ModArithmetic.of(mod)
/**
* ModInt を生成する.
* 生成された ModInt は、[value] をファクトリ生成時に指定した mod で割った余りを持つ.
*/
fun create(value: Long): ModInt {
val v = (value % mod).let { if (it < 0) it + mod else it }
return if (ma is ModArithmetic.ModArithmeticMontgomery) {
ModInt(ma.generate(v))
} else {
ModInt(v.toInt())
}
}
inner class ModInt(private var rawValue: Int) {
val mod = this@ModIntFactory.mod
val value: Int
get() = if (ma is ModArithmetic.ModArithmeticMontgomery) {
ma.reduce(rawValue.toLong())
} else {
rawValue
}
operator fun plus(mi: ModInt) = ModInt(ma.add(rawValue, mi.rawValue))
operator fun minus(mi: ModInt) = ModInt(ma.sub(rawValue, mi.rawValue))
operator fun times(mi: ModInt) = ModInt(ma.mul(rawValue, mi.rawValue))
operator fun div(mi: ModInt) = ModInt(ma.div(rawValue, mi.rawValue))
/** (this * inv) % mod = 1 を満たすような inv を ModInt として生成して返す. */
fun inv() = ModInt(ma.inv(rawValue))
/** (this ^ [b]) % mod の結果を ModInt として生成して返す. */
fun pow(b: Long) = ModInt(ma.pow(rawValue, b))
/** this を this + [mi] に変更する */
fun addAsg(mi: ModInt): ModInt {
rawValue = ma.add(rawValue, mi.rawValue)
return this
}
/** this を this - [mi] に変更する */
fun subAsg(mi: ModInt): ModInt {
rawValue = ma.sub(rawValue, mi.rawValue)
return this
}
/** this を this * [mi] に変更する */
fun mulAsg(mi: ModInt): ModInt {
rawValue = ma.mul(rawValue, mi.rawValue)
return this
}
/** this を this / [mi] に変更する */
fun divAsg(mi: ModInt): ModInt {
rawValue = ma.div(rawValue, mi.rawValue)
return this
}
override fun toString(): String {
return value.toString()
}
override fun equals(other: Any?): Boolean {
if (other is ModInt) {
return mod == other.mod && value == other.value
}
return false
}
override fun hashCode(): Int {
return (1 * 37 + mod) * 37 + value
}
}
internal interface ModArithmetic {
fun mod(): Int
fun add(a: Int, b: Int): Int
fun sub(a: Int, b: Int): Int
fun mul(a: Int, b: Int): Int
fun div(a: Int, b: Int): Int {
return mul(a, inv(b))
}
fun inv(a: Int): Int
fun pow(a: Int, b: Long): Int
class ModArithmetic1 : ModArithmetic {
override fun mod(): Int {
return 1
}
override fun add(a: Int, b: Int): Int {
return 0
}
override fun sub(a: Int, b: Int): Int {
return 0
}
override fun mul(a: Int, b: Int): Int {
return 0
}
override fun inv(a: Int): Int {
throw ArithmeticException("divide by zero")
}
override fun pow(a: Int, b: Long): Int {
return 0
}
}
class ModArithmetic2 : ModArithmetic {
override fun mod(): Int {
return 2
}
override fun add(a: Int, b: Int): Int {
return a xor b
}
override fun sub(a: Int, b: Int): Int {
return a xor b
}
override fun mul(a: Int, b: Int): Int {
return a and b
}
override fun inv(a: Int): Int {
if (a == 0) throw ArithmeticException("divide by zero")
return a
}
override fun pow(a: Int, b: Long): Int {
return if (b == 0L) 1 else a
}
}
class ModArithmetic998244353 : ModArithmetic {
private val mod = 998244353
override fun mod(): Int {
return mod
}
override fun add(a: Int, b: Int): Int {
val res = a + b
return if (res >= mod) res - mod else res
}
override fun sub(a: Int, b: Int): Int {
val res = a - b
return if (res < 0) res + mod else res
}
override fun mul(a: Int, b: Int): Int {
return (a.toLong() * b % mod).toInt()
}
override fun inv(a: Int): Int {
var va = a
var b = mod
var u: Long = 1
var v: Long = 0
while (b >= 1) {
val t = (va / b).toLong()
va -= (t * b).toInt()
val tmp1 = va
va = b
b = tmp1
u -= t * v
val tmp2 = u
u = v
v = tmp2
}
u %= mod.toLong()
if (va != 1) {
throw ArithmeticException("divide by zero")
}
return (if (u < 0) u + mod else u).toInt()
}
override fun pow(a: Int, b: Long): Int {
var vb = b
if (vb < 0) throw ArithmeticException("negative power")
var res: Long = 1
var pow2 = a.toLong()
var idx: Long = 1
while (vb > 0) {
val lsb = vb and -vb
while (lsb != idx) {
pow2 = pow2 * pow2 % mod
idx = idx shl 1
}
res = res * pow2 % mod
vb = vb xor lsb
}
return res.toInt()
}
}
class ModArithmetic1000000007 : ModArithmetic {
private val mod = 1000000007
override fun mod(): Int {
return mod
}
override fun add(a: Int, b: Int): Int {
val res = a + b
return if (res >= mod) res - mod else res
}
override fun sub(a: Int, b: Int): Int {
val res = a - b
return if (res < 0) res + mod else res
}
override fun mul(a: Int, b: Int): Int {
return (a.toLong() * b % mod).toInt()
}
override fun div(a: Int, b: Int): Int {
return mul(a, inv(b))
}
override fun inv(a: Int): Int {
var va = a
var b = mod
var u: Long = 1
var v: Long = 0
while (b >= 1) {
val t = (va / b).toLong()
va -= (t * b).toInt()
val tmp1 = va
va = b
b = tmp1
u -= t * v
val tmp2 = u
u = v
v = tmp2
}
u %= mod.toLong()
if (va != 1) {
throw ArithmeticException("divide by zero")
}
return (if (u < 0) u + mod else u).toInt()
}
override fun pow(a: Int, b: Long): Int {
var vb = b
if (vb < 0) throw ArithmeticException("negative power")
var res: Long = 1
var pow2 = a.toLong()
var idx: Long = 1
while (vb > 0) {
val lsb = vb and -vb
while (lsb != idx) {
pow2 = pow2 * pow2 % mod
idx = idx shl 1
}
res = res * pow2 % mod
vb = vb xor lsb
}
return res.toInt()
}
}
class ModArithmeticMontgomery(mod: Int) : ModArithmeticDynamic(mod) {
private val negInv: Long
private val r2: Long
private val r3: Long
fun generate(x: Long): Int {
return reduce(x * r2)
}
fun reduce(x: Long): Int {
var vx = x
vx = vx + (vx * negInv and 0xffffffffL) * mod ushr 32
return (if (vx < mod) vx else vx - mod).toInt()
}
override fun mul(a: Int, b: Int): Int {
return reduce(a.toLong() * b)
}
override fun inv(a: Int): Int {
var va = a
va = super.inv(va)
return reduce(va * r3)
}
override fun pow(a: Int, b: Long): Int {
return generate(super.pow(a, b).toLong())
}
init {
var inv: Long = 0
var s: Long = 1
var t: Long = 0
for (i in 0..31) {
if (t and 1 == 0L) {
t += mod.toLong()
inv += s
}
t = t shr 1
s = s shl 1
}
val r = (1L shl 32) % mod
negInv = inv
r2 = r * r % mod
r3 = r2 * r % mod
}
}
class ModArithmeticBarrett(mod: Int) : ModArithmeticDynamic(mod) {
private val mh: Long
private val ml: Long
private fun reduce(x: Long): Int {
var vx = x
var z = (vx and mask) * ml
z = (vx and mask) * mh + (vx ushr 32) * ml + (z ushr 32)
z = (vx ushr 32) * mh + (z ushr 32)
vx -= z * mod
return (if (vx < mod) vx else vx - mod).toInt()
}
override fun mul(a: Int, b: Int): Int {
return reduce(a.toLong() * b)
}
companion object {
private const val mask = 0xffffffffL
}
init {
/**
* m = floor(2^64/mod)
* 2^64 = p*mod + q, 2^32 = a*mod + b
* => (a*mod + b)^2 = p*mod + q
* => p = mod*a^2 + 2ab + floor(b^2/mod)
*/
val a = (1L shl 32) / mod
val b = (1L shl 32) % mod
val m = a * a * mod + 2 * a * b + b * b / mod
mh = m ushr 32
ml = m and mask
}
}
open class ModArithmeticDynamic(val mod: Int) : ModArithmetic {
override fun mod(): Int {
return mod
}
override fun add(a: Int, b: Int): Int {
val sum = a + b
return if (sum >= mod) sum - mod else sum
}
override fun sub(a: Int, b: Int): Int {
val sum = a - b
return if (sum < 0) sum + mod else sum
}
override fun mul(a: Int, b: Int): Int {
return (a.toLong() * b % mod).toInt()
}
override fun inv(a: Int): Int {
var va = a
var b = mod
var u: Long = 1
var v: Long = 0
while (b >= 1) {
val t = (va / b).toLong()
va -= (t * b).toInt()
val tmp1 = va
va = b
b = tmp1
u -= t * v
val tmp2 = u
u = v
v = tmp2
}
u %= mod.toLong()
if (va != 1) {
throw ArithmeticException("divide by zero")
}
return (if (u < 0) u + mod else u).toInt()
}
override fun pow(a: Int, b: Long): Int {
var vb = b
if (vb < 0) throw ArithmeticException("negative power")
var res = 1
var pow2 = a
var idx: Long = 1
while (vb > 0) {
val lsb = vb and -vb
while (lsb != idx) {
pow2 = mul(pow2, pow2)
idx = idx shl 1
}
res = mul(res, pow2)
vb = vb xor lsb
}
return res
}
}
companion object {
fun of(mod: Int): ModArithmetic {
return when {
mod <= 0 -> throw IllegalArgumentException()
mod == 1 -> ModArithmetic1()
mod == 2 -> ModArithmetic2()
mod == 998244353 -> ModArithmetic998244353()
mod == 1000000007 -> ModArithmetic1000000007()
mod and 1 == 1 -> ModArithmeticMontgomery(mod)
else -> ModArithmeticBarrett(mod)
}
}
}
}
}
val modArithmetic = ModIntFactory.ModArithmetic.of(mod)
fun Int.plusMod(b: Int): Int = modArithmetic.add(this, b)
fun Int.minusMod(b: Int): Int = modArithmetic.sub(this, b)
fun Int.timesMod(b: Int): Int = modArithmetic.mul(this, b)
fun Int.divMod(b: Int): Int = modArithmetic.div(this, b)
fun Int.invMod(): Int = modArithmetic.inv(this)
fun Int.powMod(b: Long): Int = modArithmetic.pow(this, b)
val mod: Int get() = modArithmetic.mod()
//////////////////////////////////////////////////
// Misc
//////////////////////////////////////////////////
/**
* `n.indices()` is sugar syntax of `0 until n`.
*/
val Int.indices: IntRange get() = 0 until this
/**
* `[index] in [this]` is sugar syntax of `index in 0 until [this]`.
*/
operator fun Int.contains(index: Int): Boolean = index in this.indices
/**
* `[this].mapIndices { transform }` is sugar syntax of `(0 until [this]).map{ transform(it) }`.
*/
inline fun <R> Int.mapIndices(transform: (Int) -> R): List<R> = this.indices.map(transform)
/**
* `[this].mapIndices(x) { transform }` is sugar syntax of
* `(0 until [this]).map{ y1-> (0 until [x]).map { x1-> transform(y1,x1) } }`.
*/
inline fun <R> Int.mapIndices(x: Int, transform: (Int, Int) -> R): List<List<R>> =
this.mapIndices { y1 -> x.mapIndices { x1 -> transform(y1, x1) } }
/**
* `[this].mapIndices(x) { transform }` is sugar syntax of
* `(0 until [this]).map{ y1-> (0 until [x]).map { x1-> transform(y1,x1) } }`.
*/
inline fun <R> Int.flatMapIndices(x: Int, transform: (Int, Int) -> R): List<R> =
this.indices.flatMap { y1 -> x.mapIndices { x1 -> transform(y1, x1) } }
/**
* `[this].forEachIndices { transform }` is sugar syntax of `(0 until [this]).map{ transform(it) }`.
*/
inline fun Int.forEachIndices(transform: (Int) -> Unit): Unit = this.indices.forEach(transform)
/**
* `[this].forEachIndices(x) { transform }` is sugar syntax of
* `(0 until [this]).map{ y1-> (0 until [x]).map { x1-> transform(y1,x1) } }`.
*/
inline fun Int.forEachIndices(x: Int, transform: (Int, Int) -> Unit): Unit =
this.forEachIndices { y1 -> x.forEachIndices { x1 -> transform(y1, x1) } }
/**
* get characters numeric value.
* e.g.: '0' to 0
*/
fun Char.toNumericValue(): Int = this - '0'
fun Char.caseToIndexedValue(): Int = this - 'a'
// fun Char.isLowerCase() = this in 'a'..'z'
//
// fun Char.isUpperCase() = this in 'A'..'Z'
/**
* make triple. e.g.:`1 to 2 to 3`
*/
infix fun <A, B, C> Pair<A, B>.to(c: C): Triple<A, B, C> = Triple(this.first, this.second, c)
fun YesNo(b: Boolean): String = if (b) Yes else No
val Yes = "Yes"
val No = "No"
fun YES_NO(b: Boolean): String = if (b) YES else NO
val YES = "YES"
val NO = "NO"
fun IntArray.swap(a: Int, b: Int): Unit = run { val temp = this[a]; this[a] = this[b]; this[b] = temp }
fun LongArray.swap(a: Int, b: Int): Unit = run { val temp = this[a]; this[a] = this[b]; this[b] = temp }
fun CharArray.swap(a: Int, b: Int): Unit = run { val temp = this[a]; this[a] = this[b]; this[b] = temp }
fun <T> Array<T>.swap(a: Int, b: Int): Unit = run { val temp = this[a]; this[a] = this[b]; this[b] = temp }
fun <T> MutableList<T>.swap(a: Int, b: Int): Unit = run { val temp = this[a]; this[a] = this[b]; this[b] = temp }
fun IntArray.changeMinOf(i: Int, v: Int): Unit = run { this[i] = kotlin.math.min(this[i], v) }
fun IntArray.changeMaxOf(i: Int, v: Int): Unit = run { this[i] = kotlin.math.max(this[i], v) }
fun LongArray.changeMinOf(i: Int, v: Long): Unit = run { this[i] = kotlin.math.min(this[i], v) }
fun LongArray.changeMaxOf(i: Int, v: Long): Unit = run { this[i] = kotlin.math.max(this[i], v) }
fun IntArray.plusAssignMod(i: Int, v: Int): Unit = run { this[i] = this[i].plusMod(v) }
fun IntArray.minusAssignMod(i: Int, v: Int): Unit = run { this[i] = this[i].minusMod(v) }
fun IntArray.timesAssignMod(i: Int, v: Int): Unit = run { this[i] = this[i].timesMod(v) }
fun IntArray.divAssignMod(i: Int, v: Int): Unit = run { this[i] = this[i].divMod(v) }
fun IntArray.powAssignMod(i: Int, v: Long): Unit = run { this[i] = this[i].powMod(v) }
fun LongArray.plusAssignMod(i: Int, v: Int): Unit = run {
this[i] = (this[i] % mod).toInt().plusMod(v).toLong()
}
fun LongArray.minusAssignMod(i: Int, v: Int): Unit = run {
this[i] = (this[i] % mod).toInt().minusMod(v).toLong()
}
fun LongArray.timesAssignMod(i: Int, v: Int): Unit = run {
this[i] = (this[i] % mod).toInt().timesMod(v).toLong()
}
fun LongArray.divAssignMod(i: Int, v: Int): Unit = run {
this[i] = (this[i] % mod).toInt().divMod(v).toLong()
}
fun LongArray.powAssignMod(i: Int, v: Long): Unit = run {
this[i] = (this[i] % mod).toInt().powMod(v).toLong()
}
/**
* same usage as `IntArray.scan`, but it will faster than that.
*/
inline fun IntArray.scanArray(initial: Int, operation: (acc: Int, Int) -> Int): IntArray {
val accumulator = IntArray(this.size + 1).apply { this[0] = initial }
for (i in this.indices) accumulator[i + 1] = operation(accumulator[i], this[i])
return accumulator
}
/**
* same usage as `LongArray.scan`, but it will faster than that.
*/
inline fun LongArray.scanArray(initial: Long, operation: (acc: Long, Long) -> Long): LongArray {
val accumulator = LongArray(this.size + 1).apply { this[0] = initial }
for (i in this.indices) accumulator[i + 1] = operation(accumulator[i], this[i])
return accumulator
}
/**
* same usage as `IntArray.scanReduce`, but it will faster than that.
*/
inline fun IntArray.scanReduceArray(operation: (acc: Int, Int) -> Int): IntArray {
val accumulator = IntArray(this.size).apply { this[0] = this@scanReduceArray[0] }
for (i in 1..this.lastIndex) accumulator[i] = operation(accumulator[i - 1], this[i])
return accumulator
}
/**
* same usage as `LongArray.scanReduce`, but it will faster than that.
*/
inline fun LongArray.scanReduceArray(operation: (acc: Long, Long) -> Long): LongArray {
val accumulator = LongArray(this.size).apply { this[0] = this@scanReduceArray[0] }
for (i in 1..this.lastIndex) accumulator[i] = operation(accumulator[i - 1], this[i])
return accumulator
}
}
// endregion kokomade template dayo (^o^)