list_mystery_2_mod2_insert

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< list_mystery_1_pop_insert

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Main Page → Exercises → Python → Solve an Exercise

Language/Type: Python list mystery lists

Write the output produced when the following function is passed each of the following lists:

def mystery(lis):
    for i in range(len(lis) - 1, -1, -1):
        if i % 2 == 0:
            lis.append(lis[i])
        else:
            lis.insert(0, lis[i])
    print(lis)

`[10, 20, 30]`
`[8, 2, 9, 7, 4]`
`[-1, 3, 28, 17, 9, 33]`

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list_mystery_2_mod2_insert