From 3529a6f68aaf0aa112465c7090479c037499255f Mon Sep 17 00:00:00 2001
From: Miroslav Tourek <miroslav.tourek@gmail.com>
Date: Thu, 4 Feb 2021 17:20:26 +0100
Subject: [PATCH] FreeCoding.json update with Guards statements

---
 .../Practice/FreeCoding/FreeCoding.json       | 236 +++++++++++++-----
 1 file changed, 176 insertions(+), 60 deletions(-)

diff --git a/Unwrap/Activities/Practice/FreeCoding/FreeCoding.json b/Unwrap/Activities/Practice/FreeCoding/FreeCoding.json
index ba1d7935..e3b57c80 100644
--- a/Unwrap/Activities/Practice/FreeCoding/FreeCoding.json
+++ b/Unwrap/Activities/Practice/FreeCoding/FreeCoding.json
@@ -4,14 +4,30 @@
         "hint": "If you make both strings lowercased using <code>lowercased()</code> you can compare the lowercased versions.",
         "startingCode": "",
         "answers": [
-            "func myFunction(input1:String,input2:String) -> Bool{\nreturn input1.lowercased() == input2.lowercased()\n}",
-            "func myFunction(input1:String,input2:String) -> Bool{\nreturn input1.uppercased() == input2.uppercased()\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\noptionalreturn input1.lowercased() == input2.lowercased()\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\noptionalreturn input1.uppercased() == input2.uppercased()\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\noptionalreturn !(input1.lowercased() != input2.lowercased())\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\noptionalreturn !(input1.uppercased() != input2.uppercased())\n}",
             "func myFunction(input1:String,input2:String) -> Bool{\nletvar result:Bool = input1.lowercased() == input2.lowercased()\nreturn result\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\nletvar result:Bool\nresult = input1.lowercased() == input2.lowercased()\nreturn result\n}",
             "func myFunction(input1:String,input2:String) -> Bool{\nletvar result:Bool = input1.uppercased() == input2.uppercased()\nreturn result\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\nletvar result:Bool\nresult = input1.uppercased() == input2.uppercased()\nreturn result\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\nletvar result:Bool = input1.lowercased() != input2.lowercased()\nreturn !result\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\nletvar result:Bool\nresult = input1.lowercased() != input2.lowercased()\nreturn !result\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\nletvar result:Bool = input1.uppercased() != input2.uppercased()\nreturn !result\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\nletvar result:Bool\nresult = input1.uppercased() != input2.uppercased()\nreturn !result\n}",
             "func myFunction(input1:String,input2:String) -> Bool{\nif input1.lowercased() == input2.lowercased(){\nreturn true\n}else{\nreturn false\n}\n}",
-            "func myFunction(input1:String,input2:String) -> Bool{\nif input1.uppercased() == input2.uppercased(){\nreturn true\n}else{\nreturn false\n}\n}",
             "func myFunction(input1:String,input2:String) -> Bool{\nif input1.lowercased() == input2.lowercased(){\nreturn true\n}\nreturn false\n}",
-            "func myFunction(input1:String,input2:String) -> Bool{\nif input1.uppercased() == input2.uppercased(){\nreturn true\n}\nreturn false\n}"
+            "func myFunction(input1:String,input2:String) -> Bool{\nguard input1.lowercased() == input2.lowercased() else { return false }\nreturn true\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\nif input1.uppercased() == input2.uppercased(){\nreturn true\n}else{\nreturn false\n}\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\nif input1.uppercased() == input2.uppercased(){\nreturn true\n}\nreturn false\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\nguard input1.uppercased() == input2.uppercased() else { return false }\nreturn true\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\nif input1.lowercased() != input2.lowercased(){\nreturn false\n}else{\nreturn true\n}\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\nif input1.lowercased() != input2.lowercased(){\nreturn false\n}\nreturn true\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\nguard input1.lowercased() != input2.lowercased() else { return true }\nreturn false\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\nif input1.uppercased() != input2.uppercased(){\nreturn false\n}else{\nreturn true\n}\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\nif input1.uppercased() != input2.uppercased(){\nreturn false\n}\nreturn true\n}",
+            "func myFunction(input1:String,input2:String) -> Bool{\nguard input1.uppercased() != input2.uppercased() else { return true }\nreturn false\n}"
         ]
     },
     {
@@ -19,10 +35,18 @@
         "hint": "You can use <code>+</code> to join two strings together.",
         "startingCode": "",
         "answers": [
-            "func myFunction(input1:String,input2:String) -> String{\nreturn input1 + input2\n}",
+            "func myFunction(input1:String,input2:String) -> String{\noptionalreturn input1 + input2\n}",
             "func myFunction(input1:String,input2:String) -> String{\nletvar result:String = input1 + input2\nreturn result\n}",
-            "func myFunction(input1:String,input2:String) -> String{\nreturn \"\\(input1)\\(input2)\"\n}",
-            "func myFunction(input1:String,input2:String) -> String{\nletvar result:String = \"\\(input1)\\(input2)\"\nreturn result\n}"
+            "func myFunction(input1:String,input2:String) -> String{\nletvar result:String\nresult = input1 + input2\nreturn result\n}",
+            "func myFunction(input1:String,input2:String) -> String{\noptionalreturn \"\\(input1)\\(input2)\"\n}",
+            "func myFunction(input1:String,input2:String) -> String{\nletvar result:String = \"\\(input1)\\(input2)\"\nreturn result\n}",
+            "func myFunction(input1:String,input2:String) -> String{\nletvar result:String\nresult = \"\\(input1)\\(input2)\"\nreturn result\n}",
+            "func myFunction(input1:String,input2:String) -> String{\nletvar array:[String] = [input1, input2]\nreturn array.joined()\n}",
+            "func myFunction(input1:String,input2:String) -> String{\nletvar array:[String]\narray = [input1, input2]\nreturn array.joined()\n}",
+            "func myFunction(input1:String,input2:String) -> String{\nletvar array:[String] = [input1, input2]\nletvar result:String = array.joined()\nreturn result\n}",
+            "func myFunction(input1:String,input2:String) -> String{\nletvar array:[String]\narray = [input1, input2]\nletvar result:String = array.joined()\nreturn result\n}",
+            "func myFunction(input1:String,input2:String) -> String{\nletvar array:[String] = [input1, input2]\nletvar result:String\nresult = array.joined()\nreturn result\n}",
+            "func myFunction(input1:String,input2:String) -> String{\nletvar array:[String]\narray = [input1, input2]\nletvar result:String\nresult = array.joined()\nreturn result\n}"
         ]
     },
     {
@@ -30,8 +54,9 @@
         "hint": "You can use the <code>count</code> property to measure the length of the string.",
         "startingCode": "",
         "answers": [
-            "func myFunction(input1:String) -> Int{\nreturn input1.count\n}",
-            "func myFunction(input1:String) -> Int{\nletvar result:Int = input1.count\nreturn result}"
+            "func myFunction(input1:String) -> Int{\noptionalreturn input1.count\n}",
+            "func myFunction(input1:String) -> Int{\nletvar result:Int = input1.count\nreturn result\n}",
+            "func myFunction(input1:String) -> Int{\nletvar result:Int\nresult = input1.count\nreturn result\n}"
         ]
     },
     {
@@ -39,7 +64,7 @@
         "hint": "The square of a number is that number multiplied by itself",
         "startingCode": "",
         "answers": [
-            "func myFunction(input1:Int) -> Int{\nreturn input1 * input1\n}",
+            "func myFunction(input1:Int) -> Int{\noptionalreturn input1 * input1\n}",
             "func myFunction(input1:Int) -> Int{\nletvar result:Int = input1 * input1\nreturn result\n}",
             "func myFunction(input1:Int) -> Int{\nletvar result:Int\n result = input1 * input1\nreturn result\n}"
         ]
@@ -49,7 +74,7 @@
         "hint": "The product of two numbers is the numbers multiplied",
         "startingCode": "",
         "answers": [
-            "func myFunction(input1:Double, input2:Double) -> Double{\nreturn input1 * input2\n}",
+            "func myFunction(input1:Double, input2:Double) -> Double{\noptionalreturn input1 * input2\n}",
             "func myFunction(input1:Double, input2:Double) -> Double{\nletvar result:Double = input1 * input2\nreturn result\n}",
             "func myFunction(input1:Double, input2:Double) -> Double{\nletvar result:Double\n result = input1 * input2\nreturn result\n}"
         ]
@@ -61,23 +86,47 @@
         "answers": [
             "var total:Int = 0\nfor number in numbers{\nif number == 5{\ntotal += 1\n}\n}\nprint(total)",
             "var total:Int = 0\nfor number in numbers{\nif number == 5{\ntotal = total + 1\n}\n}\nprint(total)",
-            "letvar filtered:[Int] = numbers.filter{$0 == 5}\nprint(filtered.count)",
-            "letvar total:Int = numbers.filter{$0 == 5}.count\nprint(total)",
-            "letvar filtered:[Int] = numbers.filter{return $0 == 5}\nprint(filtered.count)",
-            "letvar total:Int = numbers.filter{return $0 == 5}.count\nprint(total)",
-            "letvar filtered:[Int] = x numbers.filter{num in return num == 5}\nprint(filtered.count)",
-            "letvar total:Int = numbers.filter{num in return num == 5}.count\nprint(total)",
-            "letvar filtered:[Int] = numbers.filter{num in\nreturn num == 5\n}\nprint(filtered.count)",
-            "letvar total:Int = numbers.filter{num in\nreturn num == 5\n}.count\nprint(total)",
-            "letvar filtered:[Int] = x numbers.filter{num in num == 5}\nprint(filtered.count)",
-            "letvar total:Int = numbers.filter{num in num == 5}.count\nprint(total)",
-            "letvar filtered:[Int] = numbers.filter{num in\nnum == 5\n}\nprint(filtered.count)",
-            "letvar total:Int = numbers.filter{num in\nnum == 5\n}.count\nprint(total)",
+            "var total:Int\ntotal = 0\nfor number in numbers{\nif number == 5{\ntotal += 1\n}\n}\nprint(total)",
+            "var total:Int\ntotal = 0\nfor number in numbers{\nif number == 5{\ntotal = total + 1\n}\n}\nprint(total)",
+            "var total:Int = 0\nfor number in numbers{\nguard number == 5 else { continue }\ntotal += 1\n}\nprint(total)",
+            "var total:Int = 0\nfor number in numbers{\nguard number == 5 else { continue }\ntotal = total + 1\n}\nprint(total)",
+            "var total:Int\ntotal = 0\nfor number in numbers{\nguard number == 5 else { continue }\ntotal += 1\n}\nprint(total)",
+            "var total:Int\ntotal = 0\nfor number in numbers{\nguard number == 5 else { continue }\ntotal = total + 1\n}\nprint(total)",
+            "var total:Int = 0\nfor number in numbers{\nif number != 5{\ncontinue\n}\ntotal += 1\n}\nprint(total)",
+            "var total:Int = 0\nfor number in numbers{\nif number != 5{ continue }\ntotal += 1\n}\nprint(total)",
+            "var total:Int\ntotal = 0\nfor number in numbers{\nif number != 5{\ncontinue\n}\ntotal += 1\n}\nprint(total)",
+            "var total:Int\ntotal = 0\nfor number in numbers{\nif number != 5{ continue }\ntotal += 1\n}\nprint(total)",
+            "var total:Int = 0\nfor number in numbers{\nif number != 5{\ncontinue\n}else{\ntotal += 1\n}\n}\nprint(total)",
+            "var total:Int\ntotal = 0\nfor number in numbers{\nif number != 5{\ncontinue\n}else{\ntotal += 1\n}\n}\nprint(total)",
+            "letvar filtered:[Int] = numbers.filter{optionalreturn $0 == 5}\nprint(filtered.count)",
+            "letvar filtered:[Int]\nfiltered = numbers.filter{optionalreturn $0 == 5}\nprint(filtered.count)",
+            "letvar total:Int = numbers.filter{optionalreturn $0 == 5}.count\nprint(total)",
+            "letvar total:Int\ntotal = numbers.filter{optionalreturn $0 == 5}.count\nprint(total)",
+            "letvar filtered:[Int] = numbers.filter{num in optionalreturn num == 5}\nprint(filtered.count)",
+            "letvar filtered:[Int]\nfiltered = numbers.filter{num in optionalreturn num == 5}\nprint(filtered.count)",
+            "letvar total:Int = numbers.filter{num in optionalreturn num == 5}.count\nprint(total)",
+            "letvar total:Int\ntotal = numbers.filter{num in optionalreturn num == 5}.count\nprint(total)",
+            "letvar filtered:[Int] = numbers.filter{num in\noptionalreturn num == 5\n}\nprint(filtered.count)",
+            "letvar filtered:[Int]\nfiltered = numbers.filter{num in\noptionalreturn num == 5\n}\nprint(filtered.count)",
+            "letvar total:Int = numbers.filter{num in\noptionalreturn num == 5\n}.count\nprint(total)",
+            "letvar total:Int\ntotal = numbers.filter{num in\noptionalreturn num == 5\n}.count\nprint(total)",
             "var count = 0\nfor index in 0..<numbers.count {\nif numbers[index] == 5 {\ncount += 1\n}\n}\nprint(count)",
-            "print(numbers.filter{num in return num == 5}.count)",
-            "print(numbers.filter{return $0 == 5}.count)",
-            "print(numbers.filter{num in num == 5}.count)",
-            "print(numbers.filter{$0 == 5}.count)",
+            "var count = 0\nfor index in 0...numbers.count - 1 {\nif numbers[index] == 5 {\ncount += 1\n}\n}\nprint(count)",
+            "var count = 0\nfor index in 0...(numbers.count - 1) {\nif numbers[index] == 5 {\ncount += 1\n}\n}\nprint(count)",
+            "var count = 0\nfor index in 0..<numbers.count {\nguard numbers[index] == 5 else { continue }\ncount += 1\n}\nprint(count)",
+            "var count = 0\nfor index in 0...numbers.count - 1 {\nguard numbers[index] == 5 else { continue }\ncount += 1\n}\nprint(count)",
+            "var count = 0\nfor index in 0...(numbers.count - 1) {\nguard numbers[index] == 5 else { continue }\ncount += 1\n}\nprint(count)",
+            "var count = 0\nfor index in 0..<numbers.count {\nif numbers[index] != 5 { continue }\ncount += 1\n}\nprint(count)",
+            "var count = 0\nfor index in 0..<numbers.count {\nif numbers[index] != 5 {\ncontinue\n}\ncount += 1\n}\nprint(count)",
+            "var count = 0\nfor index in 0..<numbers.count {\nif numbers[index] != 5 {\ncontinue\n}else{\ncount += 1\n}\n}\nprint(count)",
+            "var count = 0\nfor index in 0...numbers.count - 1 {\nif numbers[index] != 5 { continue }\ncount += 1\n}\nprint(count)",
+            "var count = 0\nfor index in 0...numbers.count - 1 {\nif numbers[index] != 5 {\ncontinue\n}\ncount += 1\n}\nprint(count)",
+            "var count = 0\nfor index in 0...numbers.count - 1 {\nif numbers[index] != 5 {\ncontinue\n}else{\ncount += 1\n}\n}\nprint(count)",
+            "var count = 0\nfor index in 0...(numbers.count - 1) {\nif numbers[index] != 5 { continue }\ncount += 1\n}\nprint(count)",
+            "var count = 0\nfor index in 0...(numbers.count - 1) {\nif numbers[index] != 5 {\ncontinue\n}\ncount += 1\n}\nprint(count)",
+            "var count = 0\nfor index in 0...(numbers.count - 1) {\nif numbers[index] != 5 {\ncontinue\n}else{\ncount += 1\n}\n}\nprint(count)",
+            "print(numbers.filter{num in optionalreturn num == 5}.count)",
+            "print(numbers.filter{optionalreturn $0 == 5}.count)",
             "var count = 0\nfor n in numbers where n == 5 {\ncount += 1\n}\nprint(count)"
         ]
     },
@@ -90,18 +139,38 @@
             "var newArray:[Int] = [Int]()\nfor number in numbers{\nnewArray.append(2 * number)\n}",
             "var newArray:[Int] = [Int]()\nfor number in numbers{\nletvar doubled:Int = number * 2\nnewArray.append(doubled)\n}",
             "var newArray:[Int] = [Int]()\nfor number in numbers{\nletvar doubled:Int = 2 * number\nnewArray.append(doubled)\n}",
+            "var newArray:[Int] = [Int]()\nfor number in numbers{\nletvar doubled:Int\ndoubled = number * 2\nnewArray.append(doubled)\n}",
+            "var newArray:[Int] = [Int]()\nfor number in numbers{\nletvar doubled:Int\ndoubled = 2 * number\nnewArray.append(doubled)\n}",
             "var newArray:[Int] = []\nfor number in numbers{\nnewArray.append(number * 2)\n}",
             "var newArray:[Int] = []\nfor number in numbers{\nnewArray.append(2 * number)\n}",
             "var newArray:[Int] = []\nfor number in numbers{\nletvar doubled:Int = number * 2\nnewArray.append(doubled)\n}",
             "var newArray:[Int] = []\nfor number in numbers{\nletvar doubled:Int = 2 * number\nnewArray.append(doubled)\n}",
-            "letvar newArray:[Int] = numbers.map{$0 * 2}",
-            "letvar newArray:[Int] = numbers.map{num in return num * 2}",
-            "letvar newArray:[Int] = numbers.map{num in\nreturn num * 2\n}",
-            "letvar newArray:[Int] = numbers.map{2 * $0}",
-            "letvar newArray:[Int] = numbers.map{num in return 2 * num}",
-            "letvar newArray:[Int] = numbers.map{num in\nreturn 2 * num\n}",
-            "var newArray:[Int] = [Int]()\nfor i in 0..<newArray.count{\n\tnewArray.append(numbers[i] * 2)\n}",
-            "var newArray:[Int] = [Int]()\nfor i in 0..<newArray.count{\n\tletvar doubled = numbers[i] * 2\n\tnewArray.append(doubled)\n}"
+            "var newArray:[Int] = []\nfor number in numbers{\nletvar doubled:Int\ndoubled = number * 2\nnewArray.append(doubled)\n}",
+            "var newArray:[Int] = []\nfor number in numbers{\nletvar doubled:Int\ndoubled = 2 * number\nnewArray.append(doubled)\n}",
+            "letvar newArray:[Int] = numbers.map{optionalreturn $0 * 2}",
+            "letvar newArray:[Int] = numbers.map{num in optionalreturn num * 2}",
+            "letvar newArray:[Int] = numbers.map{num in\noptionalreturn num * 2\n}",
+            "letvar newArray:[Int] = numbers.map{optionalreturn 2 * $0}",
+            "letvar newArray:[Int] = numbers.map{num in optionalreturn 2 * num}",
+            "letvar newArray:[Int] = numbers.map{num in\noptionalreturn 2 * num\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0..<numbers.count{\nnewArray.append(numbers[i] * 2)\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0..<numbers.count{\nnewArray.append(2 * numbers[i])\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0...numbers.count - 1{\nnewArray.append(numbers[i] * 2)\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0...numbers.count - 1{\nnewArray.append(2 * numbers[i])\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0...(numbers.count - 1){\nnewArray.append(numbers[i] * 2)\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0...(numbers.count - 1){\nnewArray.append(2 * numbers[i])\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0..<numbers.count{\nletvar doubled = numbers[i] * 2\nnewArray.append(doubled)\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0..<numbers.count{\nletvar doubled = 2 * numbers[i]\nnewArray.append(doubled)\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0...numbers.count - 1{\nletvar doubled = numbers[i] * 2\nnewArray.append(doubled)\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0...numbers.count - 1{\nletvar doubled = 2 * numbers[i]\nnewArray.append(doubled)\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0...(numbers.count - 1){\nletvar doubled = numbers[i] * 2\nnewArray.append(doubled)\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0...(numbers.count - 1){\nletvar doubled = 2 * numbers[i]\nnewArray.append(doubled)\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0..<numbers.count{\nletvar doubled:Int\ndoubled = numbers[i] * 2\nnewArray.append(doubled)\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0..<numbers.count{\nletvar doubled:Int\ndoubled = 2 * numbers[i]\nnewArray.append(doubled)\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0...numbers.count - 1{\nletvar doubled:Int\ndoubled = numbers[i] * 2\nnewArray.append(doubled)\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0...numbers.count - 1{\nletvar doubled:Int\ndoubled = 2 * numbers[i]\nnewArray.append(doubled)\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0...(numbers.count - 1){\nletvar doubled:Int\ndoubled = numbers[i] * 2\nnewArray.append(doubled)\n}",
+            "var newArray:[Int] = [Int]()\nfor i in 0...(numbers.count - 1){\nletvar doubled:Int\ndoubled = 2 * numbers[i]\nnewArray.append(doubled)\n}"
         ]
     },
     {
@@ -110,17 +179,32 @@
         "startingCode": "let names = [\"Terry Jones\", \"John Terry\", \"Terry Crews\", \"Terry Farrell\", \"Samuel Terry\"]",
         "answers": [
             "var parsed:[String] = [String]()\nfor name in names {\n\tif name.hasPrefix(\"Terry\") {\n\t\tparsed.append(name)\n\t}\n}",
+            "var parsed = [String]()\nfor name in names {\nguard name.hasPrefix(\"Terry\") else { continue }\nparsed.append(name)\n}",
             "var parsed:[String] = [String]()\nfor name in names {\n\tif name.split(separator: \" \")[0] == \"Terry\" {\n\t\tparsed.append(name)\n\t}\n}",
-            "letvar parsed2:[String] = names.filter{return $0.hasPrefix(\"Terry\")}",
-            "letvar parsed2:[String] = names.filter{return $0.split(separator: \" \")[0] == \"Terry\"}",
-            "letvar parsed3:[String] = names.filter{name in\n\treturn name.hasPrefix(\"Terry\")\n}",
-            "letvar parsed3:[String] = names.filter{name in\n\treturn name.split(separator: \" \")[0] == \"Terry\"\n}",
-            "letvar parsed2:[String] = names.filter{$0.hasPrefix(\"Terry\")}",
-            "letvar parsed2:[String] = names.filter{$0.split(separator: \" \")[0] == \"Terry\"}",
-            "letvar parsed3:[String] = names.filter {name in\n\tname.hasPrefix(\"Terry\")\n}",
-            "letvar parsed3:[String] = names.filter {name in\n\tname.split(separator: \" \")[0] == \"Terry\"\n}",
-            "var result:[String] = [String]()\nfor i in 0..<names.count{\n\tif names[i].hasPrefix(\"Terry\") {\n\t\tresult.append(name)\n\t}\n}\n",
-            "var result:[String] = [String]()\nfor i in 0..<names.count{\n\tif names[i].split(separator: \" \")[0] == \"Terry\" {\n\t\tresult.append(name)\n\t}\n}\n"
+            "var parsed = [String]()\nfor name in names {\nguard name.split(separator: \" \")[0] == \"Terry\" else { continue }\nparsed.append(name)\n}",
+            "letvar parsed2:[String] = names.filter{optionalreturn $0.hasPrefix(\"Terry\")}",
+            "var parsed2 = [String]()\nparsed2 = names.filter{optionalreturn $0.hasPrefix(\"Terry\")}",
+            "letvar parsed2:[String] = names.filter{optionalreturn $0.split(separator: \" \")[0] == \"Terry\"}",
+            "var parsed2 = [String]()\nparsed2 = names.filter{optionalreturn $0.split(separator: \" \")[0] == \"Terry\"}",
+            "letvar parsed3:[String] = names.filter{name in\n\toptionalreturn name.hasPrefix(\"Terry\")\n}",
+            "var parsed3 = [String]()\nparsed3 = names.filter{name in\n\toptionalreturn name.hasPrefix(\"Terry\")\n}",
+            "letvar parsed3:[String] = names.filter{name in\n\toptionalreturn name.split(separator: \" \")[0] == \"Terry\"\n}",
+            "var parsed3 = [String]()\nparsed3 = names.filter{name in\n\toptionalreturn name.split(separator: \" \")[0] == \"Terry\"\n}",
+            "var result = [String]()\nfor i in 0..<names.count {\nif names[i].hasPrefix(\"Terry\") {\nresult.append(names[i])\n}\n}",
+            "var result = [String]()\nfor i in 0...names.count - 1 {\nif names[i].hasPrefix(\"Terry\") {\nresult.append(names[i])\n}\n}",
+            "var result = [String]()\nfor i in 0...(names.count - 1) {\nif names[i].hasPrefix(\"Terry\") {\nresult.append(names[i])\n}\n}",
+            "var result = [String]()\nfor i in 0..<names.count {\nguard names[i].hasPrefix(\"Terry\") else { continue }\nresult.append(names[i])\n}",
+            "var result = [String]()\nfor i in 0...names.count - 1 {\nguard names[i].hasPrefix(\"Terry\") else { continue }\nresult.append(names[i])\n}",
+            "var result = [String]()\nfor i in 0...(names.count - 1) {\nguard names[i].hasPrefix(\"Terry\") else { continue }\nresult.append(names[i])\n}",
+            "var result = [String]()\nfor i in 0..<names.count {\nguard !names[i].hasPrefix(\"Terry\") else {\nresult.append(names[i])\ncontinue\n}\ncontinue\n}",
+            "var result = [String]()\nfor i in 0...names.count - 1 {\nguard !names[i].hasPrefix(\"Terry\") else {\nresult.append(names[i])\ncontinue\n}\ncontinue\n}",
+            "var result = [String]()\nfor i in 0...(names.count - 1) {\nguard !names[i].hasPrefix(\"Terry\") else {\nresult.append(names[i])\ncontinue\n}\ncontinue\n}",
+            "var result:[String] = [String]()\nfor i in 0..<names.count {\nif names[i].split(separator: \" \")[0] == \"Terry\" {\nresult.append(names[i])\n}\n}",
+            "var result:[String] = [String]()\nfor i in 0...names.count - 1 {\nif names[i].split(separator: \" \")[0] == \"Terry\" {\nresult.append(names[i])\n}\n}",
+            "var result:[String] = [String]()\nfor i in 0...(names.count - 1) {\nif names[i].split(separator: \" \")[0] == \"Terry\" {\nresult.append(names[i])\n}\n}",
+            "var result = [String]()\nfor i in 0..<names.count {\nguard names[i].split(separator: \" \")[0] == \"Terry\" else { continue }\nresult.append(names[i])\n}",
+            "var result = [String]()\nfor i in 0...names.count - 1 {\nguard names[i].split(separator: \" \")[0] == \"Terry\" else { continue }\nresult.append(names[i])\n}",
+            "var result = [String]()\nfor i in 0...(names.count - 1) {\nguard names[i].split(separator: \" \")[0] == \"Terry\" else { continue }\nresult.append(names[i])\n}"
         ]
     },
     {
@@ -141,14 +225,18 @@
         "answers": [
             "var uppercased1:[String] = [String]()\nfor word in words {\n\tuppercased1.append(word.uppercased())\n}",
             "var uppercased2:[String] = [String]()\nfor word in words {\n\tletvar upper = word.uppercased()\n\tuppercased2.append(upper)\n}",
-            "letvar uppercased3:[String] = words.map {$0.uppercased()}",
-            "letvar uppercased3:[String] = words.map {return $0.uppercased()}",
-            "letvar uppercased4:[String] = words.map {word in\n\treturn word.uppercased()\n}",
-            "letvar uppercased4:[String] = words.map {word in return word.uppercased()}",
-            "letvar uppercased4:[String] = words.map {word in\n\tword.uppercased()\n}",
-            "letvar uppercased4:[String] = words.map {word in word.uppercased()}",
+            "letvar uppercased3:[String] = words.map {optionalreturn $0.uppercased()}",
+            "letvar uppercased4:[String] = words.map {word in\n\toptionalreturn word.uppercased()\n}",
+            "letvar uppercased4:[String] = words.map {word in optionalreturn word.uppercased()}",
+            "var uppercased3 = [String]()\nuppercased3 = words.map {optionalreturn $0.uppercased()}",
+            "var uppercased4 = [String]()\nuppercased4 = words.map {word in\n\toptionalreturn word.uppercased()\n}",
+            "var uppercased4 = [String]()\nuppercased4 = words.map {word in optionalreturn word.uppercased()}",
             "var uppercased5:[String] = [String]()\nfor i in 0..<words.count {\n\tletvar uppercased = words[i].uppercased()\n\tuppercased5.append(uppercased)\n}",
-            "var uppercased6:[String] = [String]()\nfor i in 0..<words.count {\n\tuppercased5.append(words[i].uppercased())\n}"
+            "var uppercased6:[String] = [String]()\nfor i in 0..<words.count {\n\tuppercased6.append(words[i].uppercased())\n}",
+            "var uppercased5:[String] = [String]()\nfor i in 0...words.count - 1 {\n\tletvar uppercased = words[i].uppercased()\n\tuppercased5.append(uppercased)\n}",
+            "var uppercased6:[String] = [String]()\nfor i in 0...words.count - 1 {\n\tuppercased6.append(words[i].uppercased())\n}",
+            "var uppercased5:[String] = [String]()\nfor i in 0...(words.count - 1) {\n\tletvar uppercased = words[i].uppercased()\n\tuppercased5.append(uppercased)\n}",
+            "var uppercased6:[String] = [String]()\nfor i in 0...(words.count - 1) {\n\tuppercased6.append(words[i].uppercased())\n}"
         ]
     },
     {
@@ -157,18 +245,46 @@
         "startingCode": "",
         "answers": [
             "var even1:[Int] = [Int]()\nfor i in 1...100 {\n\tif i % 2 == 0 {\n\t\teven1.append(i)\n\t}\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nif i % 2 != 1 {\neven1.append(i)\n}\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nif i % 2 == 1 { continue }\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nif i % 2 == 1 {\ncontinue\n}\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nif i % 2 == 1 {\ncontinue\n}else{\neven1.append(i)\n}\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nguard i % 2 == 0 else { continue }\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nguard i % 2 != 0 else {\neven1.append(i)\ncontinue\n}\ncontinue\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nguard i % 2 != 1 else { continue }\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nguard i % 2 == 1 else {\neven1.append(i)\ncontinue\n}\ncontinue\n}",
             "var even2:[Int] = [Int]()\nfor i in 1...100 {\n\tletvar remainder = i % 2\n\tif remainder == 0 {\n\t\teven2.append(i)\n\t}\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nletvar remainder = i % 2\nif remainder != 1 {\neven1.append(i)\n}\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nletvar remainder = i % 2\nif remainder == 1 { continue }\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nletvar remainder = i % 2\nif remainder == 1 {\ncontinue\n}\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nletvar remainder = i % 2\nif remainder == 1 {\ncontinue\n}else{\neven1.append(i)\n}\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nletvar remainder = i % 2\nguard remainder == 0 else { continue }\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nletvar remainder = i % 2\nguard remainder != 0 else {\neven1.append(i)\ncontinue\n}\ncontinue\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nletvar remainder = i % 2\nguard remainder != 1 else { continue }\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1...100 {\nletvar remainder = i % 2\nguard remainder == 1 else {\neven1.append(i)\ncontinue\n}\ncontinue\n}",
             "var even3:[Int] = [Int]()\nfor i in 1..<101 {\n\tif i % 2 == 0 {\n\t\teven3.append(i)\n\t}\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nif i % 2 != 1 {\neven1.append(i)\n}\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nif i % 2 == 1 { continue }\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nif i % 2 == 1 {\ncontinue\n}\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nif i % 2 == 1 {\ncontinue\n}else{\neven1.append(i)\n}\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nguard i % 2 == 0 else { continue }\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nguard i % 2 != 0 else {\neven1.append(i)\ncontinue\n}\ncontinue\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nguard i % 2 != 1 else { continue }\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nguard i % 2 == 1 else {\neven1.append(i)\ncontinue\n}\ncontinue\n}",
             "var even4:[Int] = [Int]()\nfor i in 1..<101 {\n\tletvar remainder = i % 2\n\tif remainder == 0 {\n\t\teven4.append(i)\n\t}\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nletvar remainder = i % 2\nif remainder != 1 {\neven1.append(i)\n}\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nletvar remainder = i % 2\nif remainder == 1 { continue }\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nletvar remainder = i % 2\nif remainder == 1 {\ncontinue\n}\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nletvar remainder = i % 2\nif remainder == 1 {\ncontinue\n}else{\neven1.append(i)\n}\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nletvar remainder = i % 2\nguard remainder == 0 else { continue }\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nletvar remainder = i % 2\nguard remainder != 0 else {\neven1.append(i)\ncontinue\n}\ncontinue\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nletvar remainder = i % 2\nguard remainder != 1 else { continue }\neven1.append(i)\n}",
+            "var even1:[Int] = [Int]()\nfor i in 1..<101 {\nletvar remainder = i % 2\nguard remainder == 1 else {\neven1.append(i)\ncontinue\n}\ncontinue\n}",
             "var even5:[Int] = [Int]()\nfor i in stride(from: 2, through: 100, by: 2) {\n\teven5.append(i)\n}",
-            "letvar even6:[Int] = (1...100).filter { $0 % 2 == 0 }",
-            "letvar even6:[Int] = (1...100).filter { return $0 % 2 == 0 }",
-            "letvar even7:[Int] = (1...100).filter { num in num % 2 == 0 }",
-            "letvar even7:[Int] = (1...100).filter { num in return num % 2 == 0 }",
-            "letvar even8:[Int] = (1..<101).filter { $0 % 2 == 0 }",
-            "letvar even8:[Int] = (1..<101).filter { return $0 % 2 == 0 }",
-            "letvar even9:[Int] = (1..<101).filter { num in num % 2 == 0 }",
-            "letvar even9:[Int] = (1..<101).filter { num in return num % 2 == 0 }",
+            "letvar even6:[Int] = (1...100).filter { optionalreturn $0 % 2 == 0 }",
+            "letvar even7:[Int] = (1...100).filter { num in optionalreturn num % 2 == 0 }",
+            "letvar even8:[Int] = (1..<101).filter { optionalreturn $0 % 2 == 0 }",
+            "letvar even9:[Int] = (1..<101).filter { num in optionalreturn num % 2 == 0 }"
         ]
     }
 ]