Merge pull request soapyigu#6 from soapyigu/Tree

soapyigu · soapyigu · commit 83c605aea663 · 2016-04-09T13:41:59.000-07:00
[Tree] refactor for loop in Zigzag and Level Order Traversal
diff --git a/Tree/BinaryTreeLevelOrderTraversal.swift b/Tree/BinaryTreeLevelOrderTraversal.swift
@@ -29,7 +29,7 @@ class BinaryTreeLevelOrderTraversal {
             var size: Int = queue.count
             var level: [Int] = []
             
-            for i in 1...size {
+            for _ in 1...size {
                 let node: TreeNode = queue[0]
                 queue.removeAtIndex(0)
                 
diff --git a/Tree/BinaryTreeLevelOrderTraversalII.swift b/Tree/BinaryTreeLevelOrderTraversalII.swift
@@ -32,7 +32,7 @@ class BinaryTreeLevelOrderTraversalII {
             var size: Int = queue.count
             var level: [Int] = []
             
-            for i in 1...size {
+            for _ in 1...size {
                 let node: TreeNode = queue[0]
                 queue.removeAtIndex(0)
 
diff --git a/Tree/BinaryTreeZigzagLevelOrderTraversal.swift b/Tree/BinaryTreeZigzagLevelOrderTraversal.swift
@@ -32,7 +32,7 @@ class BinaryTreeZigzagLevelOrderTraversal {
             var size: Int = queue.count
             var level: [Int] = []
             
-            for i in 1...size {
+            for _ in 1...size {
                 let node: TreeNode = queue[0]
                 queue.removeAtIndex(0)
                 
