a.What is time complexity of two_sum? b. Is it possible to improve on above algorithm performance (in terms of its asymptotic cost)? If yes, describe your algorithm, be detailed as much as possible.   def two_sum(elements: List[int], num: int):     for i in range(len(elements)):         for j in range(i + 1):             if elements[i] + elements[j] == num:                 return True     return False

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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a.What is time complexity of two_sum?

b. Is it possible to improve on above algorithm performance (in terms of its asymptotic cost)? If yes, describe your algorithm, be detailed as much as possible.

 

def two_sum(elements: List[int], num: int):

    for i in range(len(elements)):
        for j in range(i + 1):
            if elements[i] + elements[j] == num:
                return True

    return False

 

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