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 {
-			fmt.Fprintln(b, "  ", to, k)
+		for to, c := range nbs {
+			fmt.Fprintln(b, "  ", to, c)
 		}
 	}
 
@@ -136,7 +138,7 @@ func CompressMap[C number, N comparable](p pather[C, N], start N) pather[C, N] {
 				to[b] = to[n] + p.Cost(n, b)
 				delete(to, n)
 				visited[a] = to
-			} else  if to, ok := visited[b]; ok {
+			} else if to, ok := visited[b]; ok {
 				to[a] = to[n] + p.Cost(n, a)
 				delete(to, n)
 				visited[b] = to

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)
 
@@ -44,4 +41,4 @@ func TestTranspose(t *testing.T) {
 			{1, 0, 1},
 		},
 	)
-}
+}

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)
@@ -24,4 +30,4 @@ func TestABS(t *testing.T) {
 	is.Equal(aoc.ABS(1), 1)
 	is.Equal(aoc.ABS(0), 0)
 	is.Equal(aoc.ABS(-1), 1)
-}
+}

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)
@@ -17,4 +24,4 @@ func TestSet(t *testing.T) {
 	items := s.Items()
 	sort.Ints(items)
 	is.Equal(items, []int{1, 2, 3, 4})
-}
+}