JuniorTheoryCommon

What does the program print?

package main

import "fmt"

func inc(n int) int {
    n++
    return n
}
func main() {
    x := 1
    fmt.Println(inc(x), x)
}

2 1

Expecting 2 2: n is a copy of x, so n++ changes only the copy; inc returns 2 and x stays 1.
Expecting 1 1 or a compile error: a parameter is an ordinary variable of the function, so n++ is allowed and changes n, which inc then returns.

JuniorTheoryCommon

package main

import "fmt"

func inc(n int) int {
    n++
    return n
}
func main() {
    x := 1
    fmt.Println(inc(x), x)
}

2 1

Expecting 2 2: n is a copy of x, so n++ changes only the copy; inc returns 2 and x stays 1.
Expecting 1 1 or a compile error: a parameter is an ordinary variable of the function, so n++ is allowed and changes n, which inc then returns.