Rotate matrix 90 degrees
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I recently did problem 1.7 Rotate Matrix in cracking the coding interview. I realized my code is very different than what is in the book and what I am also fining online (I'm having trouble following the code in the book). I just want to know if the code I wrote would be appropriate in a interview setting or would I expect to write code like the solution in the book.
The problem states
Rotate Matrix: Given an image represented by an NxN matrix, where each
pixel in the image is 4 bytes, write a method to rotate the image by
90 degrees. Can you do this in place?
Here is my code:
def transpose(the_array):
res =
for i in range(len(the_array)):
transposed =
for col in the_array:
transposed.append(col[i])
transposed.reverse()
res.append(transposed)
return res
print(transpose([[1, 2, 3], [4, 5, 6], [7, 8, 9]]))
Also, would the reverse method be ok to use in an interview?
I just realized my solution may not be considered in place.
python algorithm array interview-questions matrix
edited 7 mins ago
Jamal♦
30.3k11116226
asked 4 hours ago
user9476376user9476376
11
New contributor
user9476376 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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add a comment |
$begingroup$
I recently did problem 1.7 Rotate Matrix in cracking the coding interview. I realized my code is very different than what is in the book and what I am also fining online (I'm having trouble following the code in the book). I just want to know if the code I wrote would be appropriate in a interview setting or would I expect to write code like the solution in the book.
The problem states
Rotate Matrix: Given an image represented by an NxN matrix, where each
pixel in the image is 4 bytes, write a method to rotate the image by
90 degrees. Can you do this in place?
Here is my code:
def transpose(the_array):
res =
for i in range(len(the_array)):
transposed =
for col in the_array:
transposed.append(col[i])
transposed.reverse()
res.append(transposed)
return res
print(transpose([[1, 2, 3], [4, 5, 6], [7, 8, 9]]))
Also, would the reverse method be ok to use in an interview?
I just realized my solution may not be considered in place.
python algorithm array interview-questions matrix
edited 7 mins ago
Jamal♦
30.3k11116226
asked 4 hours ago
user9476376user9476376
11
New contributor
user9476376 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
$begingroup$
What does "1.7" refer to?
$endgroup$
– l0b0
2 hours ago
1
$begingroup$
Your code does not work as pasted. Please fix the indentation.
$endgroup$
– l0b0
2 hours ago
add a comment |
$begingroup$
I recently did problem 1.7 Rotate Matrix in cracking the coding interview. I realized my code is very different than what is in the book and what I am also fining online (I'm having trouble following the code in the book). I just want to know if the code I wrote would be appropriate in a interview setting or would I expect to write code like the solution in the book.
The problem states
Rotate Matrix: Given an image represented by an NxN matrix, where each
pixel in the image is 4 bytes, write a method to rotate the image by
90 degrees. Can you do this in place?
Here is my code:
def transpose(the_array):
res =
for i in range(len(the_array)):
transposed =
for col in the_array:
transposed.append(col[i])
transposed.reverse()
res.append(transposed)
return res
print(transpose([[1, 2, 3], [4, 5, 6], [7, 8, 9]]))
Also, would the reverse method be ok to use in an interview?
I just realized my solution may not be considered in place.
python algorithm array interview-questions matrix
edited 7 mins ago
Jamal♦
30.3k11116226
asked 4 hours ago
user9476376user9476376
11
New contributor
user9476376 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
I recently did problem 1.7 Rotate Matrix in cracking the coding interview. I realized my code is very different than what is in the book and what I am also fining online (I'm having trouble following the code in the book). I just want to know if the code I wrote would be appropriate in a interview setting or would I expect to write code like the solution in the book.
The problem states
Rotate Matrix: Given an image represented by an NxN matrix, where each
pixel in the image is 4 bytes, write a method to rotate the image by
90 degrees. Can you do this in place?
Here is my code:
def transpose(the_array):
res =
for i in range(len(the_array)):
transposed =
for col in the_array:
transposed.append(col[i])
transposed.reverse()
res.append(transposed)
return res
print(transpose([[1, 2, 3], [4, 5, 6], [7, 8, 9]]))
Also, would the reverse method be ok to use in an interview?
I just realized my solution may not be considered in place.
python algorithm array interview-questions matrix
python algorithm array interview-questions matrix
edited 7 mins ago
Jamal♦
30.3k11116226
asked 4 hours ago
user9476376user9476376
11
New contributor
user9476376 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 7 mins ago
Jamal♦
30.3k11116226
asked 4 hours ago
user9476376user9476376
11
New contributor
user9476376 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 7 mins ago
Jamal♦
30.3k11116226
edited 7 mins ago
Jamal♦
30.3k11116226
edited 7 mins ago
Jamal♦
30.3k11116226
30.3k11116226
asked 4 hours ago
user9476376user9476376
11
New contributor
user9476376 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 hours ago
user9476376user9476376
11
asked 4 hours ago
user9476376user9476376
11
11
New contributor
user9476376 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
user9476376 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
user9476376 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$begingroup$
What does "1.7" refer to?
$endgroup$
– l0b0
2 hours ago
1
$begingroup$
Your code does not work as pasted. Please fix the indentation.
$endgroup$
– l0b0
2 hours ago
add a comment |
$begingroup$
What does "1.7" refer to?
$endgroup$
– l0b0
2 hours ago
1
$begingroup$
Your code does not work as pasted. Please fix the indentation.
$endgroup$
– l0b0
2 hours ago
$begingroup$
What does "1.7" refer to?
$endgroup$
– l0b0
2 hours ago
$begingroup$
What does "1.7" refer to?
$endgroup$
– l0b0
2 hours ago
1
1
$begingroup$
Your code does not work as pasted. Please fix the indentation.
$endgroup$
– l0b0
2 hours ago
$begingroup$
Your code does not work as pasted. Please fix the indentation.
$endgroup$
– l0b0
2 hours ago
add a comment |
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$begingroup$
What does "1.7" refer to?
$endgroup$
– l0b0
2 hours ago
1
$begingroup$
Your code does not work as pasted. Please fix the indentation.
$endgroup$
– l0b0
2 hours ago