fibonacci python
# Implement the fibonacci sequence
# (0, 1, 1, 2, 3, 5, 8, 13, etc...)
def fib(n):
if n== 0 or n== 1:
return n
return fib (n- 1) + fib (n- 2)fibonacci python
# Implement the fibonacci sequence
# (0, 1, 1, 2, 3, 5, 8, 13, etc...)
def fib(n):
if n== 0 or n== 1:
return n
return fib (n- 1) + fib (n- 2)python fibonacci
def Fibonacci( pos ):
#check for the terminating condition
if pos <= 1 :
#Return the value for position 1, here it is 0
return 0
if pos == 2:
#return the value for position 2, here it is 1
return 1
#perform some operation with the arguments
#Calculate the (n-1)th number by calling the function itself
n_1 = Fibonacci( pos-1 )
#calculation the (n-2)th number by calling the function itself again
n_2 = Fibonacci( pos-2 )
#calculate the fibo number
n = n_1 + n_2
#return the fibo number
return n
#Here we asking the function to calculate 5th Fibonacci
nth_fibo = Fibonacci( 5 )
print (nth_fibo)fibonacci python
# This function computes and returns fibonacci
# sequence number using Dynamic Programming
def fib(num, memo{}):
if num in memo:
return memo[num]
if num <= 2:
return 1
memo[n] = fib(num-1, memo) + fib(num-2, memo)
return memo[n]
"""
params:
int num: index of fibonacci sequence
dict memo: This object is needed to perform dynamic programming. Leave it empty
return:
int output.
complexity:
time: O(n)
memory: O(n)
"""Copyright © 2021 Codeinu
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