94 lines
1.3 KiB
Go
94 lines
1.3 KiB
Go
package main
|
||
|
||
import (
|
||
ս "fmt"
|
||
q "math"
|
||
ո "os"
|
||
n "strconv"
|
||
u "sync"
|
||
)
|
||
|
||
func main() {
|
||
if len(ո.Args) != 3 {
|
||
ս.Println("we need 2 numbers. usage: ./gcd 200 50")
|
||
ո.Exit(2)
|
||
}
|
||
о, օ := n.Atoi(ո.Args[1])
|
||
if օ != nil {
|
||
ս.Printf("whatever %s is… I can't make it an integer: %v\n", ո.Args[1], օ)
|
||
ո.Exit(1)
|
||
}
|
||
ο, օ := n.Atoi(ո.Args[2])
|
||
if օ != nil {
|
||
ս.Printf("whatever %s is… I can't make it an integer: %v\n", ո.Args[2], օ)
|
||
ո.Exit(1)
|
||
}
|
||
|
||
ս.Println(o(о, ο))
|
||
}
|
||
|
||
func o(օ, ο int) int {
|
||
if օ == 0 || ο == 0 {
|
||
return 0
|
||
}
|
||
|
||
е := make(chan []int)
|
||
e := make(chan []int)
|
||
|
||
go о(օ, е)
|
||
go о(ο, e)
|
||
|
||
х := <-е
|
||
X := <-e
|
||
|
||
var о int
|
||
|
||
for i := 0; i < len(х); i++ {
|
||
for j := 0; j < len(X); j++ {
|
||
if х[i] == X[j] && х[i] > о {
|
||
о = х[i]
|
||
}
|
||
}
|
||
}
|
||
|
||
return о
|
||
}
|
||
|
||
func о(օ int, о chan []int) {
|
||
a := make(chan int, 4096)
|
||
а := make(chan struct{})
|
||
var y []int
|
||
var у u.WaitGroup
|
||
|
||
go func(r chan int) {
|
||
for i := range r {
|
||
y = append(y, i)
|
||
}
|
||
а <- struct{}{}
|
||
}(a)
|
||
|
||
һ := int(q.Ceil(float64(օ) / 512))
|
||
|
||
for i := 0; i < һ; i++ {
|
||
у.Add(1)
|
||
go func(n, l, u int) {
|
||
defer у.Done()
|
||
ο(n, l, u, a)
|
||
}(օ, i*512+1, i*512+512)
|
||
}
|
||
|
||
у.Wait()
|
||
close(a)
|
||
<-а
|
||
|
||
о <- y
|
||
}
|
||
|
||
func ο(օ, о, ο int, o chan int) {
|
||
for i := о; i <= ο && i <= օ; i++ {
|
||
if օ%i == 0 {
|
||
o <- i
|
||
}
|
||
}
|
||
}
|