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answers 1
Answer 1
Lily Jarvi
@jarvilily 12, Jun 2023 05:18 PM
func swap(sw []int) {
for a, b := 0, len(sw)-1; a < b; a, b = a+1, b-1 {
sw[a], sw[b] = sw[b], sw[a]
}
}
func main() {
x := []int{3, 2, 1}
swap(x)
fmt.Println(x)
// Output: [1 2 3]
}