LC-0116

Signed-off-by: Tahsin Tunan <[email protected]>

Author: tahsintunan

go/0116-populating-next-right-pointers-in-each-node.go

@@ -0,0 +1,30 @@
+/**
+ * Definition for a Node.
+ * type Node struct {
+ *     Val int
+ *     Left *Node
+ *     Right *Node
+ *     Next *Node
+ * }
+ */
+
+func connect(root *Node) *Node {
+	populate(root)
+	return root
+}
+
+func populate(node *Node) {
+	if node == nil {
+		return
+	}
+	if node.Left == nil {
+		return
+	}
+
+	node.Left.Next = node.Right
+	if node.Next != nil {
+		node.Right.Next = node.Next.Left
+	}
+	populate(node.Left)
+	populate(node.Right)
+}