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python/dynamic_programming/tribonacci.py at master · althetinkerer/python · GitHub
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tribonacci.py
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# Tribonacci sequence using Dynamic Programming
def
tribonacci
(
num
:
int
)
->
list
[
int
]:
"""
Given a number, return first n Tribonacci Numbers.
>>> tribonacci(5)
[0, 0, 1, 1, 2]
>>> tribonacci(8)
[0, 0, 1, 1, 2, 4, 7, 13]
"""
dp
=
[
0
]
*
num
dp
[
2
]
=
1
for
i
in
range
(
3
,
num
):
dp
[
i
]
=
dp
[
i
-
1
]
+
dp
[
i
-
2
]
+
dp
[
i
-
3
]
return
dp
if
__name__
==
"__main__"
:
import
doctest
doctest
.
testmod
()
You can’t perform that action at this time.
