Merge pull request soapyigu#224 from maligh/master

soapyigu · web-flow · commit 66467ca8cc7c · 2018-05-16T23:55:44.000-07:00
Fix Reverse Integer
diff --git a/Math/ReverseInteger.swift b/Math/ReverseInteger.swift
@@ -7,19 +7,16 @@
  */
  
  class ReverseInteger {
-    func reverse(x: Int) -> Int {
+    func reverse(_ x: Int) -> Int {
         var res = 0
         var x = x
-  
         while x != 0 {
-            res = res * 10 + x % 10
-            x = x / 10
-            
-            if res > Int(Int32.max) || res < Int(Int32.min) {
+            if res > Int(Int32.max) / 10 || res < Int(Int32.min) / 10 {
                 return 0
             }
+            res = res * 10 + x % 10
+            x = x / 10
         }
-        
         return res
     }
-}
+}
