Exercise: Equivalent Binary Trees in Golang

From Tour of Go

package main
import "golang.org/x/tour/tree"
import "fmt"
// Walk walks the tree t sending all values
// from the tree to the channel ch.
func Walk(t *tree.Tree, ch chan int) {
 if t == nil {
  return
 }
if t.Left != nil {
  Walk(t.Left, ch)
 }
ch <- t.Value
if t.Right != nil {
  Walk(t.Right, ch)
 }
}
// Same determines whether the trees
// t1 and t2 contain the same values.
func…