Generate the Fibonacci sequence in the fewest amount of characters possible. Any language is OK, except for one that you define with one operator, f, which prints the Fibonacci numbers. Starting point: 25 characters in Haskell: f=0:1:zipWith(+)f(tail f) ...
I have been experimenting with Lambda expressions in Oxygene. Very simple recursive lambda expression to calculate a fibonacci number : var fib : Func<int32, int32>; fib := n -> iif(n > 1, fib(n - 1) + fib(n - 2), n); fib(3); When I run this code I get a nullreferenceexception. Any ideas as to what I'm doing wrong? ...
What's your favorite implementation of producing the Fibonacci sequence? Best, most creative, most clever, fastest, smallest, written in weirdest language, etc., etc. For those not familiar with this staple of programming exam question / interview question, check this out: Fibonacci Sequence at Wikipedia The question would be, write a...
I understand Big-O notation, but I don't know how to calculate it for many functions. In particular, I've been trying to figure out the computational complexity of the naive version of the Fibonacci sequence: int Fib(int n) { if (n <= 1) return 1; else return Fib(n - 1) + Fib(n - 2); } What is the computational...
I've become interested in algorithms lately, and the fibonacci sequence grabbed my attention due to its simplicity. I've managed to put something together in javascript that calculates the nth term in the fibonacci sequence in less than 15 milliseconds after reading lots of information on the web. It goes up to 1476...1477 is infinity a...
Updated: EDIT! I have coded the program wrongly. Instead of returning the Fibonacci numbers between a range (ie. startNumber 1, endNumber 20 should = only those numbers between 1 & 20), I have written for the program to display all Fibonacci numbers between a range (ie. startNumber 1, endNumber 20 displays = First 20 Fibonacci numbers). ...
So I'm learning C++. I've got my "C++ Programming Language" and "Effective C++" out and I'm running through Project Euler. Problem 1...dunzo. Problem 2...not so much. I'm working in VS2008 on a Win32 Console App. Whats the Sum of all even terms of the Fibonacci Sequence under 4 million? It wasn't working so I cut down to a test c...
The problem I am having is that when say for instance the user enters 7, then the display shows: 0 11 2 3 5 8 13 21 child ends. I cannot seem to figure out how to fix the 11 and why is it displaying that many numbers in the sequence! Can anyone help? The number of the sequence will be provided in the command line. For example, if 5 i...
there is a way to get the last number in range i need to get the last number in fibonacci sequence for first 20 terms or can to do with a list instead range? ...
hi , urm... i am practising c# console application , and am trying to get the function to verify if the number appears in a fibonacci series or not but im getting errors what i did was class Program { static void Main(string[] args) { System.Console.WriteLine(isFibonacci(20)); } static int isFibonacci(int n) ...
In Haskell, how can I generate Fibonacci numbers based on the property that the nth Fibonacci number is equal to the (n-2)th Fibonacci number plus the (n-1)th Fibonacci number? I've seen this: fibs :: [Integer] fibs = 1:1:zipwith (+) fibs (tail fibs) I don't really understand that, or how it produces an infinite list instead of one c...
Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be: 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ... Find the sum of all the even-valued terms in the sequence which do not exceed four million. Int64[] Numeros = new Int64[400000...
I'm doing a task in a subject were fib 0 is defined to = 1. But that can't be right? Fib 0 is 0? Program with fib 0 = 1; spits out fib 4 = 5 Program with fib 0 = 0; spits out fib 3 = 3 What is correct? ...
I'm having a hard time understanding why #include <iostream> using namespace std; int fib(int x) { if (x == 1) { return 1; } else { return fib(x-1)+fib(x-2); } } int main() { cout << fib(5) << endl; } results in a segmentation fault. Once x gets down to 1 shouldn't it eventually return? ...
Is there any algorithm to compute the nth fibonacci number in sub linear time? ...
Hi there, I'm having some trouble with this problem in Project Euler. Here's what the question asks: Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be: 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ... Find the sum of all the even-valued terms in the sequenc...
By starting with 1 and 2, the first 10 terms of Fibonacci Series will be: 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ... Find the sum of all the even-valued terms in the sequence which do not exceed 4 million. SOLVED: Actually, I managed to get the solution myself. Here's my program. It works. #include <stdio.h> int main() { int x=1,y=2...
My apologies in advance should I butcher any Python vocabulary, this is my first programming class and we are not permitted to post or share our code. I will do my best to explain the problem. I am defining my function as variable one and variable two. I then gave values to both variables. I used a for statement with a range value; cr...
A Python function object has an attribute dictionary called func_dict which is visible from outside the function and is mutable, but which is not modified when the function is called. (I learned this from answers to a question I asked yesterday (#1753232): thanks!) I was reading code (at http://pythonprogramming.jottit.com/functional%...
I am writing a "simple" program to determine the Nth number in the Fibonacci sequence. Ex: the 7th number in the sequence is: 13. I have finished writing the program, it works, but beginning at the 40th number it begins to delay, and takes longer, and longer. My program has to go to the 100th spot in the series. How can I fix this so ...