Please, if you see this post, there's a code i just wrote, I'm trying to print even Fibonacci numbers, check my activity for it.

Question

struggling with fibonacci, need proper correction to my code on my post in my àctivity, i'd be very happy, thank you
https://code.sololearn.com/cCe3p8K1bgA7/?ref=app

Answer 1

Olusanwo Isaac, why don't you consider using if statements because [2,2] isn't Fibonacci. Also, appending just the even numbers will cause an index error. Here's how I can help:
a, b = 0, 1
for i in range(30):
if b%2 == 0:
print(b)
a, b = b, a+b

Answer 2

Solution:

https://code.sololearn.com/c04x305Xp0WO/?ref=app

Answer 3

Jayakrishna🇮🇳 i know it :)

Answer 4

if I understood correctly and the first elements:2,2
list1 = [2, 2]
for k in range (2,4000000):
el = list1[k-2] + list1[k-1]
list1.append (el)
print (list1)

Answer 5

Error in line: el =..

Answer 6

Jayakrishna🇮🇳 it was in first code, even numbers with first 2,2

Answer 7

thank you very much julia, i'd implement that!!!

Answer 8

range(2,400000) cause Error in list indexes. Initially you have 2 elements indexes 0,1 but so list1[2] produce error.
Take range(40000) only... (means From 0)

and also list[2,2] will result wrong output for fibonacii. take list1[0,1] instead.

Answer 9

Olusanwo Isaac

list1 = [1, 2]
for i in range (40):
el = list1[i] + list1[i+1]
list1.append(el)
print (list1)

Julia Shabanova initially first numbers are 0,1,1,2,3,5...
So 2,2 is not correct. But if we want as 2,2 then its our wish..

Answer 10

Julia Shabanova ok.

Olusanwo Isaac you should start from 1,2. from the description and actually i think 30 range is enough..

Answer 11

thank you very much, i apperiate both of you

Answer 12

🇧🇩Saadman Nuheen🇧🇩 , thanks for reminding, i forgot it was even numbers i need...
thank you

Answer 13

it still says indexerror...

Answer 14

ok i'd do that

Answer 15

thank you, i've done it, but it was too much to run here, so i reduced it...

i got the question from here tho : http://www.projecteuler.net, that's if you don't know it, thanks once again

Answer 16

Julia Shabanova , i assumed the (2,2) cause i was asked to print even fibonacci numbers

Answer 17

Jayakrishna🇮🇳 thanks, the highest range was 4000, and it wasn't readable

Answer 18

thanks Boniface Delali Dakey