#include <iostream>
 
using namespace std;
 
namespace N1
{
    int f(int n) { return n * 2; }
}
namespace N2
{
    int f(double n) { return n * 3; }
}
void main()
{
    using N1::f;
    int i1 = f(1.0);
    cout << "i1 = " << i1;
    using N2::f;
    int i2 = f(1.0);
    cout << "i1 = " << i2;
    system("pause");
}

 

Câu hỏi liên quan

• What will be output of following program?

• Static data members cannot be private.

• What is output?

ZUNIA12

• A class that builds a linked list should destroy the list in the class destructor.

• Which of the following shows the correct syntax for an if statement?

• Identify which of the following are declarations
   

•  What will be the output of the program?

• Which of the following statements are correct about an array?

  1. The array int num[26]; can store 26 elements
  2. The expression num[1] designates the very first element in the array
  3. It is necessary to initialize the array at the time of declaration.
  4. The declaration num[SIZE] is allowed if SIZE is a macro.

• What is output?

• Point out a error in the following program

• What is wrong in the following code?

• Which of the following are unary operators in C?
  1. !
  2. sizeof
  3. ~
  4. &&

• What is output?

• What is the output of the following code?

•  Is the following statement a declaration or definition?

• Which of the following gives the memory address of a variable pointed to by pointer a?

•  It Is legal to return local variables from a function which returns by reference.

• When writing function or class template, one use a ___ to specify a generic data type.

• What is output?

• A function template defines a parameterized nonmember function, which enables a program to call the same function with different types of arguments.