Fibonacci Series
This program will help you to print Fibonacci series on your console screen.. If you don't know about Fibonacci series it is something like this:
0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55,......................
A new number in the series comes after the sum of last two numbers in the series like 0 + 1 = 1, so the third number is 1 and then 1 + 2 = 3, so the next number is three and so on...
Here is the output of the program I made:
Code:
// Ahmad Mukhtar (www.cppfuzz.com)
/*
______ .______ .______ _______ __ __ ________ ________
/ || _ \ | _ \ | ____|| | | | | / | /
| ,----'| |_) | | |_) | | |__ | | | | `---/ / `---/ /
| | | ___/ | ___/ | __| | | | | / / / /
| `----.| | | | | | | `--' | / /----. / /----.
\______|| _| | _| |__| \______/ /________| /________|
*/
#include <iostream>
using namespace std;
void main()
{
int num,c,i; // declaration
int a=0,b=1,sum=0; // initiallization
cout << "Enter a number: ";
cin >> num; // This input will give us info that how many numbers of the series user wants to see
for (i=0;i<num;i++)
{
if (i<=1)
{
c=i; // This condition is for printing 1 two times for series (0,1,1,2....)
}
else
{
c=a+b; // adds the last two numbers
a=b; // assigns new number to the old variable
b=c; // same as above
}
cout << c << "\t";
sum = sum + c; // this is to print the sum of all the numbers of the series printed.
}
cout << endl;
cout << endl;
cout << "The sum of all the numbers is: " << sum;
cout << endl;
}
