list_mystery_2d

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< list_mystery_2_mod2_insert

list_mystery_ab >

Main Page → Exercises → Python → Solve an Exercise

Language/Type: Python 2D lists list mystery

Consider the following function:

def mystery2d(a):
    for r in range(len(a)): 
        for c in range(len(a[0]) - 1): 
            if a[r][c + 1] > a[r][c]:
                a[r][c] = a[r][c + 1]

If a two-dimensional list named numbers is initialized to store the following integers, what are its contents after the call shown?

numbers = [[3, 4, 5, 6],
           [4, 5, 6, 7],
           [5, 6, 7, 8]]
mystery2d(numbers)

`numbers[0][0]`
`numbers[0][1]`
`numbers[0][2]`
`numbers[0][3]`
`numbers[1][0]`
`numbers[1][1]`
`numbers[1][2]`
`numbers[1][3]`
`numbers[2][0]`
`numbers[2][1]`
`numbers[2][2]`
`numbers[2][3]`

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list_mystery_2d