1 #include <iostream> 2 using std::cout; 3 4 int x = 10; 5 6 int function () 7 {

Question

 1  #include <iostream> 2  using std::cout; 3 4  int x = 10; 5 6  int function ()  7  { 8   x=x/2; 9   return x; 10 } 11 12 int otherFunction ( int x )  13 { 14  int y = function()  2; 15  x=xx;  16  return x/y;  17 } 18  19 int main()   20 {  21  x=2; 22  int x = 4; 23  cout << otherFunction ( x ) << '  ' ; 24 }  The code above is correct, compilable and runnable C++ code. Using the code above, answer the following questions. 1) On line 21, which x is in scope?     a. It isn't in scope at all.      b. The one from line 22.      c. The one from line 4.      d. The one from line 15. 2) On line 8, which x is in scope?      a. It isn't in scope at all.     b. The one from line 22.     c. The one from line 21.     d. The one from line 4. 3) On line 15, which x is in scope?      a. The one from line 4.     b. The one from line 12.      c. The one from line 21.      d. The one from line 22. 

Explanation / Answer

1)Ans)c

We already declared the variable x as global variable and assigned 10 to it.

Here at line 21 we are assigning the value 2 to that global variable

2)Ans)c

As we didn’t declared any variable x inside the function.so here x inside the function refers to the global variable.Now the value of global variables x=2 which is referring at the line 21

3)Ans)d

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