Shorten this python code. Keep the name the same.
1 2 | def foo(arr, keys): return [[x[y] if y in x else -5 for y in keys] for x in arr] |
Shorten this python code. Keep the name the same.
1 2 | def foo(arr, keys): return [[x[y] if y in x else -5 for y in keys] for x in arr] |
Here's a shorter version of the code using list comprehension and the `get()` method:
1 2 | def foo(arr, keys): return [ [x.get(y, -5) for y in keys] for x in arr ] |
1 2 | def foo(arr, keys): return [ [x.get(y, -5) if y in x else -5 for y in keys] for x in arr ] |
I extracted the following code from that output:
1 2 | def foo(arr, keys): return [ [x.get(y, -5) if y in x else -5 for y in keys] for x in arr ] |
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 | def foo(arr, keys): return [ [x.get(y, -5) if y in x else -5 for y in keys] for x in arr ] answer = foo([{1: 2, 3: 4, 5: 6}], [1, 2, 3, 4]) expected = [[2, -5, 4, -5]] assert answer == expected, f'Wrong answer; got {answer} instead of {expected}' print('All tests passed') |
All tests passed
Testing if the previous output contains the string All tests passed
: True
Testing if the previous output contains the string .get
: True
Shorten this python code. Keep the name the same.
1 2 | def foo(arr, keys): return [[x[y] if y in x else -5 for y in keys] for x in arr] |
Shorten this python code. Keep the name the same.
1 2 | def foo(arr, keys): return [[x[y] if y in x else -5 for y in keys] for x in arr] |
Here's a possible shorter version of the code:
1 2 | def foo(arr, keys): return [list(map(lambda x: x.get(y, -5), arr)) for y in keys] |
I extracted the following code from that output:
1 2 | def foo(arr, keys): return [list(map(lambda x: x.get(y, -5), arr)) for y in keys] |
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 | def foo(arr, keys): return [list(map(lambda x: x.get(y, -5), arr)) for y in keys] answer = foo([{1: 2, 3: 4, 5: 6}], [1, 2, 3, 4]) expected = [[2, -5, 4, -5]] assert answer == expected, f'Wrong answer; got {answer} instead of {expected}' print('All tests passed') |
Traceback (most recent call last):
File "/usr/src/app/main.py", line 11, in <module>
assert answer == expected, f'Wrong answer; got {answer} instead of {expected}'
^^^^^^^^^^^^^^^^^^
AssertionError: Wrong answer; got [[2], [-5], [4], [-5]] instead of [[2, -5, 4, -5]]
Testing if the previous output contains the string All tests passed
: False
Testing if the previous output contains the string .get
: True
Shorten this python code. Keep the name the same.
1 2 | def foo(arr, keys): return [[x[y] if y in x else -5 for y in keys] for x in arr] |
Shorten this python code. Keep the name the same.
1 2 | def foo(arr, keys): return [[x[y] if y in x else -5 for y in keys] for x in arr] |
Here is one way to shorten the code:
1 2 | def foo(arr, keys): return [[x.get(y, -5) for y in keys] for x in arr] |
1 2 | def foo(arr, keys): return [list(map(lambda x, y: x.get(y, -5), x, keys)) for x in arr] |
I extracted the following code from that output:
1 2 3 4 5 | def foo(arr, keys): return [[x.get(y, -5) for y in keys] for x in arr] def foo(arr, keys): return [list(map(lambda x, y: x.get(y, -5), x, keys)) for x in arr] |
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | def foo(arr, keys): return [[x.get(y, -5) for y in keys] for x in arr] def foo(arr, keys): return [list(map(lambda x, y: x.get(y, -5), x, keys)) for x in arr] answer = foo([{1: 2, 3: 4, 5: 6}], [1, 2, 3, 4]) expected = [[2, -5, 4, -5]] assert answer == expected, f'Wrong answer; got {answer} instead of {expected}' print('All tests passed') |
Traceback (most recent call last):
File "/usr/src/app/main.py", line 12, in <module>
answer = foo([{1: 2, 3: 4, 5: 6}], [1, 2, 3, 4])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/app/main.py", line 6, in foo
return [list(map(lambda x, y: x.get(y, -5), x, keys)) for x in arr]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/app/main.py", line 6, in <listcomp>
return [list(map(lambda x, y: x.get(y, -5), x, keys)) for x in arr]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/app/main.py", line 6, in <lambda>
return [list(map(lambda x, y: x.get(y, -5), x, keys)) for x in arr]
^^^^^
AttributeError: 'int' object has no attribute 'get'
Testing if the previous output contains the string All tests passed
: False
Testing if the previous output contains the string .get
: True
Shorten this python code. Keep the name the same.
1 2 | def foo(arr, keys): return [[x[y] if y in x else -5 for y in keys] for x in arr] |
Shorten this python code. Keep the name the same.
1 2 | def foo(arr, keys): return [[x[y] if y in x else -5 for y in keys] for x in arr] |
You can shorten the code by using a dictionary comprehension and the `get()` method to return `-5` when the key is not found in the dictionary. Here's the shortened version:
1 2 | def foo(arr, keys): return [ [x.get(y, -5) for y in keys] for x in arr ] |
I extracted the following code from that output:
1 2 | def foo(arr, keys): return [ [x.get(y, -5) for y in keys] for x in arr ] |
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 | def foo(arr, keys): return [ [x.get(y, -5) for y in keys] for x in arr ] answer = foo([{1: 2, 3: 4, 5: 6}], [1, 2, 3, 4]) expected = [[2, -5, 4, -5]] assert answer == expected, f'Wrong answer; got {answer} instead of {expected}' print('All tests passed') |
All tests passed
Testing if the previous output contains the string All tests passed
: True
Testing if the previous output contains the string .get
: True
Shorten this python code. Keep the name the same.
1 2 | def foo(arr, keys): return [[x[y] if y in x else -5 for y in keys] for x in arr] |
Shorten this python code. Keep the name the same.
1 2 | def foo(arr, keys): return [[x[y] if y in x else -5 for y in keys] for x in arr] |
Here's the shortened version of the code:
1 2 | def foo(arr, keys): return [list(map(lambda x,y: x.get(y,-5), x, keys)) for x in arr] |
I extracted the following code from that output:
1 2 | def foo(arr, keys): return [list(map(lambda x,y: x.get(y,-5), x, keys)) for x in arr] |
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 | def foo(arr, keys): return [list(map(lambda x,y: x.get(y,-5), x, keys)) for x in arr] answer = foo([{1: 2, 3: 4, 5: 6}], [1, 2, 3, 4]) expected = [[2, -5, 4, -5]] assert answer == expected, f'Wrong answer; got {answer} instead of {expected}' print('All tests passed') |
Traceback (most recent call last):
File "/usr/src/app/main.py", line 9, in <module>
answer = foo([{1: 2, 3: 4, 5: 6}], [1, 2, 3, 4])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/app/main.py", line 3, in foo
return [list(map(lambda x,y: x.get(y,-5), x, keys)) for x in arr]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/app/main.py", line 3, in <listcomp>
return [list(map(lambda x,y: x.get(y,-5), x, keys)) for x in arr]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/app/main.py", line 3, in <lambda>
return [list(map(lambda x,y: x.get(y,-5), x, keys)) for x in arr]
^^^^^
AttributeError: 'int' object has no attribute 'get'
Testing if the previous output contains the string All tests passed
: False
Testing if the previous output contains the string .get
: True