forked from jamil-said/code-samples
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathfibonacci.py
More file actions
executable file
·42 lines (38 loc) · 1.7 KB
/
fibonacci.py
File metadata and controls
executable file
·42 lines (38 loc) · 1.7 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
"""
Create a function that calculates the first n fibonacci numbers in an
efficient way (no recursion!)
"""
def myfib(n):
a, b, res = 0, 1, []
for i in range(n):
res.append(b)
a, b = b, a+b
return res
print(myfib(100))
"""
[1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584,
4181, 6765, 10946, 17711, 28657, 46368, 75025, 121393, 196418, 317811, 514229,
832040, 1346269, 2178309, 3524578, 5702887, 9227465, 14930352, 24157817,
39088169, 63245986, 102334155, 165580141, 267914296, 433494437, 701408733,
1134903170, 1836311903, 2971215073, 4807526976, 7778742049, 12586269025,
20365011074, 32951280099, 53316291173, 86267571272, 139583862445, 225851433717,
365435296162, 591286729879, 956722026041, 1548008755920, 2504730781961,
4052739537881, 6557470319842, 10610209857723, 17167680177565, 27777890035288,
44945570212853, 72723460248141, 117669030460994, 190392490709135, 308061521170129,
498454011879264, 806515533049393, 1304969544928657, 2111485077978050, 3416454622906707,
5527939700884757, 8944394323791464, 14472334024676221, 23416728348467685,
37889062373143906, 61305790721611591, 99194853094755497, 160500643816367088,
259695496911122585, 420196140727489673, 679891637638612258, 1100087778366101931,
1779979416004714189, 2880067194370816120, 4660046610375530309, 7540113804746346429,
12200160415121876738, 19740274219868223167, 31940434634990099905, 51680708854858323072,
83621143489848422977, 135301852344706746049, 218922995834555169026, 354224848179261915075]
"""
""" alternative, more complicated
def myfib(n):
a, b, c = 0, 1, 1
results = []
while c <= n:
results.append(b)
a, b, c = b, a+b, c + 1
return results
"""