package racer

import (
	"net/http"
)

func Racer(a, b string) (winner string) {
  select {
  case <-ping(a):
    return a
  case <-ping(b):
    return b
  }
}


func ping(url string) chan struct{} {
  ch := make(chan struct{})
  go func() {
    http.Get(url)
    close(ch)
  }()
  return ch
}