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25 lines
452 B
Python
25 lines
452 B
Python
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# Tribonacci sequence using Dynamic Programming
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def tribonacci(num: int) -> list[int]:
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"""
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Given a number, return first n Tribonacci Numbers.
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>>> tribonacci(5)
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[0, 0, 1, 1, 2]
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>>> tribonacci(8)
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[0, 0, 1, 1, 2, 4, 7, 13]
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"""
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dp = [0] * num
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dp[2] = 1
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for i in range(3, num):
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dp[i] = dp[i - 1] + dp[i - 2] + dp[i - 3]
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return dp
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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