burkov

2018

• Software update
• New color
• Larger fan
• Primary sprocket gets a metal cover instead of plastic.

2017

• LED headlight

burkov

private val openingBrackets = "([{<"
private val closingBrackets = ")]}>"

fun String.isBalancedComplex(): Boolean =
        fold(Stack<Char>()) { acc, c ->
            when (c) {
                // For kotlin beginners: `apply(..)` == `{acc.push(c); acc}`: just a shorthand to eliminate 1 line of code, nothing fancy here
                in openingBrackets -> acc.apply { push(c) } 
                in closingBrackets -> {
                    if (acc.isEmpty()) return false //  leading closing braket like ')))'

burkov

Prerequisites

• Don't use PC while benchmarikng!
• Laptop power should be pluged-in
• Maven: 3.3.9
• Java: 1.8.0_111
• SBT: 0.13.13
• Systems under test:
  • [4278U] MacOS Sierra, mbp mid 2014 (MGX72RU/A), core i5-4278U, 8 Gb, 128 Gb SSD
  • [3570K] Ubuntu 16.10, core i5-3570K OC @ 4.3 Ghz, 8 Gb, 240 Gb SSD Kingston SKC300S