Add 카드2

Author: co3oing

Diff for: .DS_Store

@@ -0,0 +1,19 @@
+let N = Int(readLine() ?? "")!
+
+
+if 1 <= N && N <= 500000 {
+    var cards: [Int] = []
+    var head = 0
+    
+    for num in 1...N {
+        cards.append(num)
+    }
+    
+    while head != cards.count-1 {
+        head += 1
+        cards.append(cards[head])
+        head += 1
+    }
+    
+    print(cards[head])
+}