solution

Prob1.playground/Contents.swift

@@ -1,4 +1,5 @@
 //문제1(이 문제 이상하면 풀지 마세요ㅠㅠ)
+/*
 let numArr1 = [1, 2, 3, 4, 6, 8, 34, 13, 33, 66, 66666, 789]
 var retArr1: [Int] = []
 var ret1: Int = 0
@@ -10,8 +11,10 @@ for i in 0..<numArr1.count{
     retArr1[i] = ret1
 }
 print(retArr1)
-
+*/
 //문제2
+
+
 let numArr2 = [1, 2, 3, 4, 6, 8, 34, 13, 33, 66, 66666, 789]
 var ret2: Int = 0
 for i in 0..<numArr2.count{
@@ -21,3 +24,6 @@ for i in 0..<numArr2.count{
 
 }
 print(ret2)
+
+
+let ret = numArr2.filter{ (a:Int) -> Bool in return a%3 == 0}.reduce(0) { (k, aa) -> Int in return aa + k}

Question.playground/Contents.swift

@@ -8,15 +8,25 @@ var array: [Int] = [1, 2, 5, 7, 13, 12, 8, 20, 33]
 var Array1: [Int] = []
 var Array2: [Int] = []
 for number in array{
-    if number%2 == 0 {
+    if number%2 == 0 { // 2, 12 ,8 ,20
+
         Array1.append(number)
+        Array1.sort()
         }
     else {
        Array2 += [number]
     }
 }
-let ArrayArray1 = Array1.sorted {$0 < $1}
-print(ArrayArray1)
-let ArrayArray2 = Array2.sorted {$0 < $1}
-print(ArrayArray2)
+
+print(Array1)
+print(Array2)
+
+let ret = array.filter { (a:Int) -> Bool in return a%2 == 0}.sorted{$0 < $1}
+
+print(ret)
+
+let ret2 = array.filter{ (b : Int ) -> Bool in return b%2 == 1}.sorted{$0 < $1}
+
+print(ret2)
+