6). Fibonacci series Example Program In C++

Simple C++ Example Programs

Definition

In mathematics, the Fibonacci numbers or Fibonacci series or Fibonacci sequence are the numbers in the following integer sequence:

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, and each subsequent number is the sum of the previous two.

Example Program

/*  Example Program For Fibonacci Series Using Loop In C++
    little drops @ thiyagaraaj.com

    Coded By:THIYAGARAAJ MP             */

#include<iostream>
#include<conio.h>

using namespace std;

int main()
{

     // Variable Declaration
     int counter, n;
     long last=1,next=0,sum;
     // Get Input Value
     cout<<"Enter the Number :";
     cin>>n;

     //Fibonacci Series Calculation
     while(next<n/2)
     {
      cout<<last <<"  ";
      sum=next+last;
      next=last;
      last=sum;
     }

     // Wait For Output Screen
     getch();
     return 0;
 }

Sample Output

Enter the Number :300
1
1
2
3
5
8
13
21
34
55
89
144
233