20 lines
822 B
Python
20 lines
822 B
Python
def sum_squares(lst):
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""""
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This function will take a list of integers. For all entries in the list, the function shall square the integer entry if its index is a
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multiple of 3 and will cube the integer entry if its index is a multiple of 4 and not a multiple of 3. The function will not
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change the entries in the list whose indexes are not a multiple of 3 or 4. The function shall then return the sum of all entries.
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Examples:
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For lst = [1,2,3] the output should be 6
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For lst = [] the output should be 0
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For lst = [-1,-5,2,-1,-5] the output should be -126
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"""
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result = 0
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for i, val in enumerate(lst):
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if i % 3 == 0:
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result += val ** 2
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elif i % 4 == 0:
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result += val ** 3
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else:
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result += val
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return result |