don't need the top-level waitgroup

2021-12-12 13:07:36 -05:00
parent c2a087abf7
commit 137cfd379b
1 changed files with 2 additions and 14 deletions
--- a/12/main.go
+++ b/12/main.go
@@ -108,13 +108,7 @@ func partOne() {
 		rooms[p[1]] = b
 	}
 	successes := make(chan bool, 10000)
-	var wg sync.WaitGroup
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
-		descend(rooms, "start", []string{}, successes, false)
-	}()
-	wg.Wait()
+	descend(rooms, "start", []string{}, successes, false)
 	fmt.Printf("%+v\n", len(successes))
 }
 func partTwo() {
@@ -140,12 +134,6 @@ func partTwo() {
 		rooms[p[1]] = b
 	}
 	successes := make(chan bool, 200000)
-	var wg sync.WaitGroup
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
-		descend(rooms, "start", []string{}, successes, true)
-	}()
-	wg.Wait()
+	descend(rooms, "start", []string{}, successes, true)
 	fmt.Printf("%+v\n", len(successes))
 }