diff --git a/go/tofix/func/inverttree/main.go b/go/tofix/func/inverttree/main.go
index 860449855..43da99db1 100644
--- a/go/tofix/func/inverttree/main.go
+++ b/go/tofix/func/inverttree/main.go
@@ -1,5 +1,12 @@
 package correct
 
+import (
+	"fmt"
+	"io"
+	"math/rand"
+	"strconv"
+)
+
 type TNode struct {
 	Val   int
 	Left  *TNode
@@ -22,7 +29,6 @@ func InvertTree(root *TNode) *TNode {
 	return root
 }
 
-
 type stuNode = TNode
 type solNode = correct.TNode
 
diff --git a/go/tofix/func/merge/main.go b/go/tofix/func/merge/main.go
index a8f7eefb3..f769d1217 100644
--- a/go/tofix/func/merge/main.go
+++ b/go/tofix/func/merge/main.go
@@ -1,5 +1,10 @@
 package correct
 
+import (
+	"math/rand"
+	"strconv"
+)
+
 type TreeNodeM struct {
 	Left  *TreeNodeM
 	Val   int
@@ -19,7 +24,6 @@ func MergeTrees(t1 *TreeNodeM, t2 *TreeNodeM) *TreeNodeM {
 	return t1
 }
 
-
 type stuTreeNode = TreeNodeM
 type solTreeNode = correct.TreeNodeM
 
diff --git a/go/tofix/func/sametree/main.go b/go/tofix/func/sametree/main.go
index 1378d79ef..ed34e1ad3 100644
--- a/go/tofix/func/sametree/main.go
+++ b/go/tofix/func/sametree/main.go
@@ -1,5 +1,10 @@
 package correct
 
+import (
+	"math/rand"
+	"strconv"
+)
+
 type TreeNodeL struct {
 	Left  *TreeNodeL
 	Val   int
@@ -23,7 +28,6 @@ func checkIfEq(t1 *TreeNodeL, t2 *TreeNodeL) bool {
 	return t1.Val == t2.Val && checkIfEq(t1.Right, t2.Right) && checkIfEq(t1.Left, t2.Left)
 }
 
-
 type stuTreeNode = TreeNodeL
 type solTreeNode = correct.TreeNodeL
 
diff --git a/go/tofix/func/sortlist/main.go b/go/tofix/func/sortlist/main.go
index a7eefbd20..9442a61d7 100644
--- a/go/tofix/func/sortlist/main.go
+++ b/go/tofix/func/sortlist/main.go
@@ -1,5 +1,7 @@
 package correct
 
+import "strconv"
+
 type Nodelist struct {
 	Data int
 	Next *Nodelist
@@ -32,7 +34,6 @@ func moveValue(l *Nodelist, cmp func(a, b int) bool) *Nodelist {
 	return ret
 }
 
-
 func listToString4(n *correct.Nodelist) (res string) {
 	it := n
 	for it != nil {