channel2 channel2

main.go

package main

func goroutine1(s []int, c chan int) {
	sum := 0
	for _, v := range s {
		sum += v
	}
	c <- sum
}

func goroutine2(s []int, c chan int) {
	sum := 0
	for _, v := range s {
		sum -= v
	}
	c <- sum
}

func main() {
	s := []int{1, 2, 3, 4, 5}
	c := make(chan int)
	go goroutine1(s, c)
	go goroutine2(s, c)
	x := <-c
	y := <-c
	println(x)
	println(y)
}