JuniorTheoryCommon

What does the program print?

package main

import "fmt"

func main() {
    x := 1
    if true {
        x := 2
        fmt.Print(x, " ")
    }
    fmt.Println(x)
}

2 1

Expecting 2 2: x := 2 inside the if declares a new x that hides the outer one; the outer x stays 1 and is printed after the block.
Expecting a compile error for declaring x twice: := in an inner block declares a separate variable, which Go allows.

JuniorTheoryCommon

package main

import "fmt"

func main() {
    x := 1
    if true {
        x := 2
        fmt.Print(x, " ")
    }
    fmt.Println(x)
}

2 1

Expecting 2 2: x := 2 inside the if declares a new x that hides the outer one; the outer x stays 1 and is printed after the block.
Expecting a compile error for declaring x twice: := in an inner block declares a separate variable, which Go allows.