func main() {
if len(os.Args) <= 1 {
fmt.Printf("usage: %s 10\n", filepath.Base(os.Args[0]))
return
}
t, _ := strconv.Atoi(os.Args[1])
r := rand.New(0)
heads := counter.New("heads")
tails := counter.New("tails")
for i := 0; i < t; i++ {
if r.Bernoulli(0.5) {
heads.Increment()
} else {
tails.Increment()
}
}
fmt.Println(heads)
fmt.Println(tails)
d := heads.Tally() - tails.Tally()
fmt.Println("delta:", math.Abs(float64(d)))
}
func main() {
if len(os.Args) <= 1 {
fmt.Printf("usage: %s 1000000\n", filepath.Base(os.Args[0]))
return
}
t, _ := strconv.Atoi(os.Args[1])
r := rand.New(0)
heads := counter.New("heads")
tails := counter.New("tails")
for i := 0; i < t; i++ {
if r.Bernoulli(0.5) {
heads.Increment()
} else {
tails.Increment()
}
}
if heads.Tally() == tails.Tally() {
fmt.Println("Tie")
} else {
fmt.Println(max(heads, tails), "wins")
}
}
// Reads two command-line integers n and t; creates n counters;
// increments t counters at random; and prints results
func main() {
if len(os.Args) <= 1 {
fmt.Printf("usage: %s 5 10\n", filepath.Base(os.Args[0]))
return
}
n, _ := strconv.Atoi(os.Args[1])
t, _ := strconv.Atoi(os.Args[2])
r := rand.New(1000)
// create n counters
hits := make([]*counter.Counter, n)
for i := 0; i < n; i++ {
hits[i] = counter.New(fmt.Sprintf("counter%d", i))
}
// increment t counters at random
for i := 0; i < t; i++ {
hits[r.UniformI(n)].Increment()
}
// print results
for i := 0; i < n; i++ {
fmt.Println(hits[i])
}
}
func main() {
if len(os.Args) <= 1 {
fmt.Printf("usage: %s 1000000\n", filepath.Base(os.Args[0]))
return
}
const SIDES int = 6
r := rand.New(0)
t, _ := strconv.Atoi(os.Args[1])
rolls := make([]*counter.Counter, SIDES+1)
for i := 1; i <= SIDES; i++ {
rolls[i] = counter.New(fmt.Sprintf("%d's", i))
}
for i := 0; i < t; i++ {
result := r.UniformIRange(1, SIDES+1)
rolls[result].Increment()
}
for i := 1; i <= SIDES; i++ {
fmt.Println(rolls[i])
}
}
