[Tree] refactor solution to Path Sum II

Yi Gu · Yi Gu · commit 50f7735f2369 · 2016-05-03T22:14:59.000-07:00
diff --git a/Tree/PathSumII.swift b/Tree/PathSumII.swift
@@ -36,8 +36,7 @@ class PathSumII {
         
         if root.left == nil && root.right == nil && root.val == sum {
             list.append(root.val)
-            let dupList = list
-            res.append(dupList)
+            res.append(list)
             return
         }
     

Original file line number	Diff line number	Diff line change
`@@ -36,8 +36,7 @@ class PathSumII {`
`36`	`36`
`37`	`37`	`if root.left == nil && root.right == nil && root.val == sum {`
`38`	`38`	`list.append(root.val)`
`39`		`- let dupList = list`
`40`		`- res.append(dupList)`
	`39`	`+ res.append(list)`
`41`	`40`	`return`
`42`	`41`	`}`
`43`	`42`