mystery2d

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< mystery2

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Main Page → Exercises → Python → Solve an Exercise

Language/Type: Python lists multi-dimensional lists

Consider the following function:

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