adding machine round part 1 questions

Interview series/Machine Round - 1/MyPlayground.playground/Contents.swift

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+import Foundation
+
+/**
+
+ I hope the video was helpful, please feel free to reach out for any issues or any if you have any machine round question then feel free to share it with me I'll try and add them to the series
+
+ Based on the feedback of the video, I plan to continue this series, if you like to see such content in the future then please do like the video and add your comments in the video
+
+ Regards,
+ Ravi
+
+ */
+
+
+// Question # 1: remove duplicate from array
+var arrayWithDuplicates : [Int] = [3,3,4,7,15,2,1,2,7,10,12,11,10,15,18,15,20,11]
+
+var charArray : [Character] = ["a","a","c","b","b","d","e","e"]
+
+extension Array where Element : Equatable {
+
+    func removeDuplicate() -> [Element] {
+
+        guard !self.isEmpty else {return []}
+
+        var temp : [Element] = []
+
+        self.forEach { item in
+            if(!temp.contains(item)) {
+                temp.append(item)
+            }
+        }
+
+        return temp
+    }
+}
+
+let result = arrayWithDuplicates.removeDuplicate()
+print(result)
+
+
+//let result = Set(arrayWithDuplicates)
+//print(result)
+
+//func removeDuplicate(arr: Array<Int>) -> Array<Int> {
+//
+//    guard !arr.isEmpty else {return []}
+//
+//
+//    var temp : [Int] = []
+//
+//    arr.forEach { item in
+//        if(!temp.contains(item)) {
+//            temp.append(item)
+//        }
+//    }
+//
+//    return temp
+//}
+
+
+// Question # 2: create an array extension for only Int types
+
+//extension Array where Element == Int {
+//
+//    func removeDuplicate() -> [Element] {
+//
+//        guard !self.isEmpty else {return []}
+//
+//        var temp : [Element] = []
+//
+//        self.forEach { item in
+//            if(!temp.contains(item)) {
+//                temp.append(item)
+//            }
+//        }
+//
+//        return temp
+//    }
+//}
+
+// Question #3: Get all the capital characters from a string
+
+var str = "Hello World"
+
+func filterCapitalCharacters(fromString input: String) -> String? {
+
+    guard input.isEmpty == false else { return nil}
+    let result = input.filter({("A"..."Z").contains($0)})
+
+    return result.isEmpty ? nil : result
+}
+
+print(filterCapitalCharacters(fromString: ""))
+
+// Question #4: convert [Any] to [Int]
+
+let input : [Any] = [true, 1, "ravi", 2, "codecat15", false, "test"]
+
+func convertToIntArray(inputValue: [Any]) -> [Int] {
+
+    guard inputValue.isEmpty == false else { return [] }
+
+    let result = inputValue.compactMap { item in
+        item as? Int
+    }
+
+    return result.isEmpty == false ? result : []
+}
+
+print(convertToIntArray(inputValue: input))

Interview series/Machine Round - 1/MyPlayground.playground/contents.xcplayground

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+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<playground version='5.0' target-platform='ios' buildActiveScheme='true' importAppTypes='true'>
+    <timeline fileName='timeline.xctimeline'/>
+</playground>

Interview series/Machine Round - 1/MyPlayground.playground/xcuserdata/ravirdixit.xcuserdatad/xcschemes/xcschememanagement.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>MyPlayground (Playground).xcscheme</key>
+		<dict>
+			<key>isShown</key>
+			<false/>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>