Unit 9 2D Lists Practice

Front

Which is more commonly used: Row-major order (row listed first, then column) or Column-major order (column listed first, then row)?

Back

row-major order

Front

Which element is referenced by a[1][2]?
Consider the following 2D list called "a":
3 4 5
8 9 1
2 7 6

Back

1

Front

Fill in the blank to add 4 lists of [1, 2, 3] as elements to the list called "a":
for i in range(4):
a.______([1, 2, 3])

Back

append

Front

Consider this code. What are the dimensions of the 2D list called "grid" (row x column)? Options: 4 X 20, 5 x 5, 5 X 4, 4 x 5

Back

4 x 5

Front

Consider this code. What is printed? Options: 48, 82, 15, 24

Back

82

Front

After running this code, how many rows are in "list"?

Back

4

Front

If I wanted to add 100 to every element of a 2D list of integers, I would use 2 nested traditional for loops

Back

true

Front

After this code is run, what values does the 2D list "a" hold? Options: 0 1 2 1 2 3 2 3 4, tuliprose daisygardenia dahliairis, 0 0 0 0 1 2 0 2 4, tulipaster daisylily dahliahyacinth

Back

0 1 2 1 2 3 2 3 4

Front

Select the best choice below to insert in the blanks to correctly swap two values at indexes [2][1] and [3][0] in the 2D list "a":
____ = a[2][1]
a[2][1] = a[3][0]
a[3][0] = ____

Back

temp

Front

What type of variable can be accessed anywhere in the code?

Back

global