go fmt

12/12.go

@@ -4,8 +4,8 @@ import (
 	"bufio"
 	"fmt"
 	"os"
-	"strings"
 	"strconv"
+	"strings"
 )
 
 // cat input | go run 12.go
@@ -43,7 +43,6 @@ func main() {
 	fmt.Println(cp, groups)
 }
 
-
 func CountPipes(pipedata []pipedata) int {
 	seen := make(map[int]int)
 	seen = getChildren(seen, pipedata, 0)
@@ -76,7 +75,7 @@ func getChildren(seen map[int]int, pipedata []pipedata, pipe int) map[int]int {
 	p := pipedata[pipe]
 	for l := range p.linkedTo {
 		child := p.linkedTo[l]
-		if (seen[child] == 0) {
+		if seen[child] == 0 {
 			seen[child]++
 			seen = getChildren(seen, pipedata, child)
 		}

12/12_test.go

@@ -25,7 +25,6 @@ func TestCountPipes(t *testing.T) {
 	}
 }
 
-
 func TestCountGroups(t *testing.T) {
 	seen := make(map[int]int)
 	v, _ := CountGroups(seen, tests)