6. Marcus Tullius Cicero, Philippicoe (XII, 2)

8. ( )

10. Otto Eduard Leopold von Bismarck-Schönhausen

12. ⊔
⊔ ⊔
⊔ ⊔

19. #include <iostream>
int main(){
{
using namespace std;
cout << (2 << 2);
}
{
int cout = 1;
cout << (2 << 2);
}
}

39. ƛ ✎✎
✎
✎ ƛ

68. >>> def foo():
... x = "static"
... def bar():
... print(x)
...
... bar()
...
>>> foo()
static

69. sub foo{
my $x = "staticn";
my $bar = sub{
print $x;
}
&bar();
}
&foo(); #-> static

71. sub foo{
my $bar = sub{
print $x;
};
$bar->();
}
$x = "globaln";
&foo(); #-> global
{
local $x = "dynamicn";
&foo(); #-> dynamic
}
&foo(); #-> global