Software Developer

The recursive approach involves direct implementation of mathematical recurrence formula. 
F(n) = F(n-1)+F(n-2)
Pseudocode :
fibonacci(n):
if(n<=1)
return n;
return fibonacci(n-1) + fibonacci(n-2)

This is an exponential approach. 
It can be optimized using dynamic programming. Maintain an array that stores all the calculated fibonacci numbers so far and return the nth fibonacci number at last. This approach will take O(n) time complexity and O(n) auxiliary space.

To overload an operator, we use a special operator function. We define the function inside the class or structure whose objects/variables we want the overloaded operator to work with.

Program overloading << operator :

#include
#include
class Time
{
int hr, min, sec;
public:
// default constructor
Time()
{
hr=0, min=0; sec=0;
}

// overloaded constructor
Time(int h, int m, int s)
{
hr=h, min=m; sec=s;
}

// overloading '<<' operator
friend ostream& operator << (ostream &out, Time &tm); 
};

// define the overloaded function
ostream& operator << (ostream &out, Time &tm)
{
out << "Time is: " << tm.hr << " hour : " << tm.min << " min : " << tm.sec << " sec";
return out;
}

int main()
{
Time tm(3,15,45);
cout << tm;
return 0;
}

Two or more functions can have the same name but different parameters; such functions are called function overloading. In OOP, function overloading is known as a function of polymorphism. The function can perform various operations best on the argument list. It differs by type or number of arguments they hold. By using a different number of arguments or different types of arguments, the function can be redefined.

1. The C programming language is a procedural language type while C++ is an object-oriented programming language type.
2. C programming follows a top to down programming approach that focuses on the steps rather than the data. C++ follows a bottom-to-top approach that focuses on data rather than the overall procedure.
3. Since C is a structured programming language the program is divided into separate blocks known as functions. Since C++ is an object-oriented programming language, the code is divided into Objects and Classes.

Let the 3 boxes be labelled as:
“Apples and Oranges”
“Apples only”
“Oranges only”
Choose the box having label “Apples and Oranges”.
Now as each box is incorrectly labelled therefore this box should be an “Apples only” box or “Oranges only” box. So now the fruit which is taken out will decide the name of the box. Suppose an orange comes out then this box will be an “Orange only” box.
Now again as each box was incorrectly labelled, the box which was originally labelled as “Apples only” box will get labelled as “Apples and Oranges” and the remaining gets labelled as “Apples only” box.

1. Light the first stick from both the sides and 2nd stick from one side.
2. 1st stick will finish in 30 min. while 2nd stick will be burnt half way.
3. Now light 2nd stick from both the sides. It will finish in next 15 min.
So we have calculated 45 minutes in all.

Tip 1 : Be sure to do your homework on the organization and its culture before the interview.
Tip 2 : Employers want to understand how you use your time and energy to stay productive and efficient. Be sure to emphasize that you adhere to deadlines and take them seriously.
Tip 3 : Talk about a relevant incident that made you keen on the profession you are pursuing and follow up by discussing your education.