Question

What is output of the following program?
#include <iostream>
using namespace std;
int x = 19;
int main()
{
int x = 21;
{
int x = 41;
cout <<::x<<x<<::x<<"\n";
}
return 0;
}​

Answer 1

code have error:-

unused variable int x=21;

not method name or return type for the block statement 7 to 10.

If error removed, then output:-

194119 { assuming int x =21 not exist}