Iterating over a 3D list in Python
To iterate over a three-dimensional list, you need to use three nested loops. Let's say we have a list like this:
lst = [
[
['a', 'b'],
['c', 'd'],
],
[
['e', 'f'],
['g', 'h'],
]
]
Let's display all its elements on the screen:
for sub in lst:
for sub_el in sub:
for el in sub_el:
print(el)
A three-dimensional list is given:
lst = [
[
['q', 'w', 'e'],
['r', 't', 'y'],
['u', 'i', 'o'],
],
[
['p', 'a', 's'],
['d', 'f', 'g'],
['h', 'j', 'k'],
],
[
['l', 'z', 'x'],
['c', 'v', 'b'],
['n', 'm', 'q'],
],
]
Use a loop to print all the items in the list to the console.
A three-dimensional list is given:
lst = [
[
[1, 3],
[5, 7],
],
[
[2, 4],
[6, 8],
],
]
Use a loop to get the sum of all the elements in a list.
