Write a program to generate negative Fibonacci numbers

Description:

• In mathematics, the Fibonacci numbers or Fibonacci sequence are the numbers in the following integer sequence  0, 1, -1, 2, -3, 5, -8, 13, -21, 34, -55, 89, -144 . . .

• By definition, the first two numbers in the Fibonacci sequence are 0 and 1, each subsequent number is the subtraction of the previous two

Pr-requisites:-

• Loops

• Operators

Objective: –

To understand the concept of

◦ Continuos looping.

◦ If-else constructs

Inputs: –

A integer say ‘N’ 

Test Case 1 :

Enter a number: -8

0 1 -1 2 -3 5 -8

Test Case 2:

Enter a number: -10

0 1 -1 2 -3 5 -8

Test Case 3:

Enter a number: -21

0 1 -1 2 -3 5 -8 13 -21

Test Case 4: 

Enter a number: -13

0 1 -1 2 -3 5 -8 13

Test Case 5: 

Enter a number: 13

Invalid input