What is the expected output of the following code?

What is the expected output of the following code?

x = [[[1, 2], [3, 4]], [[5, 6], [7, 8]]]

def func(data):

res = data[0][0]

for da in data:

for d in da:

if res < d:

res = d

return res

print(func(x[0]))
A . The code is erroneous.
B. 8
C. 6
D. 2
E. 4

View Answer

Answer: E

Explanation:

Topics: def for if list

Try it yourself:

x = [[[1, 2], [3, 4]], [[5, 6], [7, 8]]]

def func(data):

print(‘data:’, data) # [[1, 2], [3, 4]]

res = data[0][0] # 1

print(‘res:’, res)

for da in data:

print(‘da:’, da) # [1, 2] -> [3, 4]

for d in da:

print(‘d:’, d) # 1 -> 2 -> 3 -> 4

if res < d:

res = d

return res

print(func(x[0])) # 4

print(func([[1, 7], [3, 4]])) # 7

This function looks for the highest element

in a two dimensional list (or another iterable).

In the beginning the first number data[0][0] gets taken as possible result.

In the inner for loop every number is compared to the possible result.

If one number is higher it becomes the new possible result.

And in the end the result is the highest number.