Function Benchmark20Workers

exercise-3/solution/worker_test.go:11–11

(b *testing.B)

func Benchmark5Workers(b *testing.B)  { benchmarkWorkers(5, b) }
func Benchmark10Workers(b *testing.B) { benchmarkWorkers(10, b) }
func Benchmark20Workers(b *testing.B) { benchmarkWorkers(20, b) }

func benchmarkWorkers(i int, b *testing.B) {
	for n := 0; n < b.N; n++ {