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go_goroutines_channels_parallel_slice_sum.go
goSums the numbers in a slice by distributing the work between
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go_goroutines_channels_parallel_slice_sum.go
1package main
2
3import "fmt"
4
5func sum(s []int, c chan int) {
6 sum := 0
7 for _, v := range s {
8 sum += v
9 }
10 c <- sum // send sum to c
11}
12
13func main() {
14 s := []int{7, 2, 8, -9, 4, 0}
15
16 c := make(chan int)
17 go sum(s[:len(s)/2], c)
18 go sum(s[len(s)/2:], c)
19 x, y := <-c, <-c // receive from c
20
21 fmt.Println(x, y, x+y)
22}