chore: fixes

grids.go

@@ -2,7 +2,9 @@ package aoc
 
 import (
 	"cmp"
+	"fmt"
 	"sort"
+	"strings"
 
 	"golang.org/x/exp/maps"
 )
@@ -109,8 +111,8 @@ func (m *cmap[C, N]) String() string {
 
 	for k, nbs := range m.neighbors {
 		fmt.Fprintln(b, k)
-		for to, v := range nbs {
+		for to, c := range nbs {
-			fmt.Fprintln(b, "  ", to, k)
+			fmt.Fprintln(b, "  ", to, c)
 		}
 	}
 

itertools_test.go

@@ -1,8 +1,6 @@
 package aoc_test
 
 import (
-	"fmt"
-	"sort"
 	"testing"
 
 	"github.com/matryer/is"
@@ -27,7 +25,6 @@ func TestRepeat(t *testing.T) {
 	is.Equal(aoc.Repeat(5, 3), []int{5, 5, 5})
 }
 
-
 func TestTranspose(t *testing.T) {
 	is := is.New(t)
 

math_test.go

@@ -1,5 +1,11 @@
 package aoc_test
 
+import (
+	"testing"
+
+	"github.com/matryer/is"
+	aoc "go.sour.is/advent-of-code"
+)
 
 func TestLCM(t *testing.T) {
 	is := is.New(t)

set_test.go

@@ -1,5 +1,12 @@
 package aoc_test
 
+import (
+	"sort"
+	"testing"
+
+	"github.com/matryer/is"
+	aoc "go.sour.is/advent-of-code"
+)
 
 func TestSet(t *testing.T) {
 	is := is.New(t)