add new solutions

solutions/3/q328/solution.go

@@ -0,0 +1,29 @@
+package q328
+
+type ListNode struct {
+	Val  int
+	Next *ListNode
+}
+
+func oddEvenList(head *ListNode) *ListNode {
+	odd := &ListNode{}
+	even := &ListNode{}
+	pO, pE := odd, even
+
+	i := 0
+	for p := head; p != nil; p = p.Next {
+		i++
+		if i%2 == 0 {
+			pE.Next = p
+			pE = p
+		} else {
+			pO.Next = p
+			pO = p
+		}
+	}
+	pE.Next = nil
+	pO.Next = even.Next
+	return odd.Next
+}
+
+var _ = oddEvenList