channels.go

package main

import "fmt"

func sum(s []int,c chan int){
	sum := 0
	for _, v := range s{
		sum += v
	}
	c <- sum
}

func main(){
	s := []int{1,2,3,4,5,6,7,8,9,10}
	c := make(chan int)
	go sum(s[:len(s)/2],c)
	go sum(s[len(s)/2:],c)
	x,y := <- c,<-c
	fmt.Println(x,y,x+y)
}