Merge pull request soapyigu#152 from soapyigu/String

[String] optimize code style for Flip Game
p-sun · Dec 7, 2016 · 1621482 · 1621482
2 parents 0f1f024 + 03b52c6
commit 1621482
Showing 1 changed file with 3 additions and 4 deletions.
diff --git a/String/FlipGame.swift b/String/FlipGame.swift
@@ -7,17 +7,16 @@
 class FlipGame {
     func generatePossibleNextMoves(s: String) -> [String] {
         var res = [String]()
-        var sChars = [Character](s.characters)
+        var sChars = Array(s.characters)
 
         guard sChars.count > 1 else {
             return res
         }
 
         for i in 0 ..< sChars.count - 1 {
             if sChars[i] == "+" && sChars[i + 1] == "+" {
-                var temp = [Character](sChars)
-                temp[i] = "-"
-                temp[i + 1] = "-"
+                var temp = sChars
+                (temp[i], temp[i + 1])  = ("-", "-")
                 res.append(String(temp))
             }
         }