What's the error

Question

my program for Fibonacci in Python is not showing any O/P nor any error.But I cannot find the bug...if anyone catches it please inform.I am inserting the code
https://code.sololearn.com/cwLm85lIlDWl/?ref=app
https://code.sololearn.com/cwLm85lIlDWl/?ref=app

Answer 1

do you know how can I add a zero at the beginning though?

Answer 2

I think the indention of line 15 and 16 (the last two lines) is wrong, it should be like this.

def fibo(n):
a=0
b=1
if(n<0):
print("incorrect")
elif(n==0):
return a
elif(n==1):
return b
else:
for i in range(2,n):
c=a+b
a=b
b=c
return c
print(fibo(9))

Answer 3

see this:

https://code.sololearn.com/cEdHn2V1zvy1/?ref=app

Answer 4

hello SC, I like to suggest to change c value to 1. Fibonacci series 1,1,2,3,.....or 0,1,1,2,3,5,8......

Answer 5

you're welcome

Answer 6

u will have to print the first two elements that is 0 and 1 directly before the loop

Answer 7

You didn't call the function.

Answer 8

I have called in the print statement

Answer 9

You wrongly indented the print and the return like Paul Jacobs has mentioned.

Answer 10

thanks S.C.

Answer 11

you're welcome.

Answer 12

brahmeswara rao Thanks for pointing it out!

Answer 13

ok

Answer 14

still not showing any O/P