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| package main
import "fmt"
func mod1(x int) { x = 100 } func mod2(x *int) { *x = 100 } func modArry(a1 *[3]int) { a1[0] = 20 }
func main() {
a := 20 mod1(a) fmt.Println(a) mod2(&a) fmt.Println(a) a2 := [3]int{1, 2, 3} modArry(&a2) fmt.Println(a2) }
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