[swift] Swift Beta performance: sorting arrays

func partition(inout list : [Int], low: Int, high : Int) -> Int {
    let pivot = list[high]
    var j = low
    var i = j - 1
    while j < high {
        if list[j] <= pivot{
            i += 1
            (list[i], list[j]) = (list[j], list[i])
        }
        j += 1
    }
    (list[i+1], list[high]) = (list[high], list[i+1])
    return i+1
}

func quikcSort(inout list : [Int] , low : Int , high : Int) {

    if low < high {
        let pIndex = partition(&list, low: low, high: high)
        quikcSort(&list, low: low, high: pIndex-1)
        quikcSort(&list, low: pIndex + 1, high: high)
    }
}

var list = [7,3,15,10,0,8,2,4]
quikcSort(&list, low: 0, high: list.count-1)

var list2 = [ 10, 0, 3, 9, 2, 14, 26, 27, 1, 5, 8, -1, 8 ]
quikcSort(&list2, low: 0, high: list2.count-1)

var list3 = [1,3,9,8,2,7,5]
quikcSort(&list3, low: 0, high: list3.count-1) 

This is my Blog about Quick Sort- Github sample Quick-Sort

You can take a look at Lomuto's partitioning algorithm in Partitioning the list. Written in Swift.

Examples related to swift

Make a VStack fill the width of the screen in SwiftUI Xcode 10.2.1 Command PhaseScriptExecution failed with a nonzero exit code Command CompileSwift failed with a nonzero exit code in Xcode 10 Convert Json string to Json object in Swift 4 iOS Swift - Get the Current Local Time and Date Timestamp Xcode 9 Swift Language Version (SWIFT_VERSION) How do I use Safe Area Layout programmatically? How can I use String substring in Swift 4? 'substring(to:)' is deprecated: Please use String slicing subscript with a 'partial range from' operator Safe Area of Xcode 9 The use of Swift 3 @objc inference in Swift 4 mode is deprecated?

Examples related to performance

Why is 2 * (i * i) faster than 2 * i * i in Java? What is the difference between spark.sql.shuffle.partitions and spark.default.parallelism? How to check if a key exists in Json Object and get its value Why does C++ code for testing the Collatz conjecture run faster than hand-written assembly? Most efficient way to map function over numpy array The most efficient way to remove first N elements in a list? Fastest way to get the first n elements of a List into an Array Why is "1000000000000000 in range(1000000000000001)" so fast in Python 3? pandas loc vs. iloc vs. at vs. iat? Android Recyclerview vs ListView with Viewholder

Examples related to sorting

Sort Array of object by object field in Angular 6 Sorting a list with stream.sorted() in Java How to sort dates from Oldest to Newest in Excel? how to sort pandas dataframe from one column Reverse a comparator in Java 8 Find the unique values in a column and then sort them pandas groupby sort within groups pandas groupby sort descending order Efficiently sorting a numpy array in descending order? Swift: Sort array of objects alphabetically

Examples related to xcode6

'Framework not found' in Xcode No suitable records were found verify your bundle identifier is correct unable to dequeue a cell with identifier Cell - must register a nib or a class for the identifier or connect a prototype cell in a storyboard Move a view up only when the keyboard covers an input field My prerelease app has been "processing" for over a week in iTunes Connect, what gives? Programmatically navigate to another view controller/scene Changing the Status Bar Color for specific ViewControllers using Swift in iOS8 Change tab bar item selected color in a storyboard How do I change UIView Size? How to get textLabel of selected row in swift?

Examples related to compiler-optimization

How to compile Tensorflow with SSE4.2 and AVX instructions? Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_u64 on Intel CPUs Swift Beta performance: sorting arrays Why are elementwise additions much faster in separate loops than in a combined loop? Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)? How to disable compiler optimizations in gcc? How to see which flags -march=native will activate? Why do we use volatile keyword? How to turn off gcc compiler optimization to enable buffer overflow