Vectorize this update loop. Call the function `update`: import numpy as np def update(high, highest_number, delta): for i in range(len(high)): if i != highest_number: high[i] = min(high[i], high[highest_number] + delta[highest_number] - delta[i]) return high
Vectorize this update loop. Call the function `update`: import numpy as np def update(high, highest_number, delta): for i in range(len(high)): if i != highest_number: high[i] = min(high[i], high[highest_number] + delta[highest_number] - delta[i]) return high
Here's the vectorized version of the update loop:
1 2 3 4 5 6 7 | import numpy as np def update(high, highest_number, delta): mask = np.arange(len(high)) != highest_number high[mask] = np.minimum(high[mask], high[highest_number] + delta[highest_number] - delta[mask]) return high |
I extracted the following code from that output:
1 2 3 4 5 6 7 | import numpy as np def update(high, highest_number, delta): mask = np.arange(len(high)) != highest_number high[mask] = np.minimum(high[mask], high[highest_number] + delta[highest_number] - delta[mask]) return high |
Below is a student's answer to a question about how to vectorize this loop: def update(high, highest_number, delta): for i in range(len(high)): if i != highest_number: high[i] = min(high[i], high[highest_number] + delta[highest_number] - delta[i]) return high Here is their code: import numpy as np def update(high, highest_number, delta): mask = np.arange(len(high)) != highest_number high[mask] = np.minimum(high[mask], high[highest_number] + delta[highest_number] - delta[mask]) return high Did the student try to vectorize the loop? Don't tell me if they are correct or not. (I have tests for that separately which will catch any bugs.) Just tell me if they tried to vectorize the loop. End your answer with either the string "The student passes" if they tried to do a vectorized loop, or "The student fails" if they just wrote a for loop again.
Yes, the student clearly attempted to vectorize the loop. They used numpy arrays and operations like np.arange() to create a boolean mask, and then used vectorized operations (np.minimum()) instead of iterating through elements one by one. They eliminated the explicit for loop in favor of numpy's vectorized operations. The student passes
Testing if the previous output contains the string student passes
: True
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | import numpy as np def update(high, highest_number, delta): mask = np.arange(len(high)) != highest_number high[mask] = np.minimum(high[mask], high[highest_number] + delta[highest_number] - delta[mask]) return high import numpy as np answer = list(update(np.array([2, 5, 9, 1, 2, 0, 3, 8]), 4, np.array([1, 2, 1, 4, 3, 2, 1, 2]))) expected = [2, 3, 4, 1, 2, 0, 3, 3] 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
Vectorize this update loop. Call the function `update`: import numpy as np def update(high, highest_number, delta): for i in range(len(high)): if i != highest_number: high[i] = min(high[i], high[highest_number] + delta[highest_number] - delta[i]) return high
Vectorize this update loop. Call the function `update`: import numpy as np def update(high, highest_number, delta): for i in range(len(high)): if i != highest_number: high[i] = min(high[i], high[highest_number] + delta[highest_number] - delta[i]) return high
Here's the vectorized version of the update loop using NumPy operations:
1 2 3 4 5 6 7 8 9 10 11 12 13 | import numpy as np def update(high, highest_number, delta): # Create a mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation for all elements except highest_number new_values = high[highest_number] + delta[highest_number] - delta # Use where to only update values that should be smaller high[mask] = np.minimum(high[mask], new_values[mask]) return high |
I extracted the following code from that output:
1 2 3 4 5 6 7 8 9 10 11 12 13 | import numpy as np def update(high, highest_number, delta): # Create a mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation for all elements except highest_number new_values = high[highest_number] + delta[highest_number] - delta # Use where to only update values that should be smaller high[mask] = np.minimum(high[mask], new_values[mask]) return high |
Below is a student's answer to a question about how to vectorize this loop: def update(high, highest_number, delta): for i in range(len(high)): if i != highest_number: high[i] = min(high[i], high[highest_number] + delta[highest_number] - delta[i]) return high Here is their code: import numpy as np def update(high, highest_number, delta): # Create a mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation for all elements except highest_number new_values = high[highest_number] + delta[highest_number] - delta # Use where to only update values that should be smaller high[mask] = np.minimum(high[mask], new_values[mask]) return high Did the student try to vectorize the loop? Don't tell me if they are correct or not. (I have tests for that separately which will catch any bugs.) Just tell me if they tried to vectorize the loop. End your answer with either the string "The student passes" if they tried to do a vectorized loop, or "The student fails" if they just wrote a for loop again.
Yes, the student tried to vectorize the loop. They: 1. Used numpy operations instead of a for loop 2. Used array-based operations like np.arange and boolean masking 3. Used vectorized operations like np.minimum 4. Applied operations to whole arrays at once rather than element by element The student passes
Testing if the previous output contains the string student passes
: True
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | import numpy as np def update(high, highest_number, delta): # Create a mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation for all elements except highest_number new_values = high[highest_number] + delta[highest_number] - delta # Use where to only update values that should be smaller high[mask] = np.minimum(high[mask], new_values[mask]) return high import numpy as np answer = list(update(np.array([2, 5, 9, 1, 2, 0, 3, 8]), 4, np.array([1, 2, 1, 4, 3, 2, 1, 2]))) expected = [2, 3, 4, 1, 2, 0, 3, 3] 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
Vectorize this update loop. Call the function `update`: import numpy as np def update(high, highest_number, delta): for i in range(len(high)): if i != highest_number: high[i] = min(high[i], high[highest_number] + delta[highest_number] - delta[i]) return high
Vectorize this update loop. Call the function `update`: import numpy as np def update(high, highest_number, delta): for i in range(len(high)): if i != highest_number: high[i] = min(high[i], high[highest_number] + delta[highest_number] - delta[i]) return high
Here's the vectorized version of the update loop:
1 2 3 4 5 6 7 8 9 10 11 12 13 | import numpy as np def update(high, highest_number, delta): # Create a boolean mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation high[mask] = np.minimum( high[mask], high[highest_number] + delta[highest_number] - delta[mask] ) return high |
I extracted the following code from that output:
1 2 3 4 5 6 7 8 9 10 11 12 13 | import numpy as np def update(high, highest_number, delta): # Create a boolean mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation high[mask] = np.minimum( high[mask], high[highest_number] + delta[highest_number] - delta[mask] ) return high |
Below is a student's answer to a question about how to vectorize this loop: def update(high, highest_number, delta): for i in range(len(high)): if i != highest_number: high[i] = min(high[i], high[highest_number] + delta[highest_number] - delta[i]) return high Here is their code: import numpy as np def update(high, highest_number, delta): # Create a boolean mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation high[mask] = np.minimum( high[mask], high[highest_number] + delta[highest_number] - delta[mask] ) return high Did the student try to vectorize the loop? Don't tell me if they are correct or not. (I have tests for that separately which will catch any bugs.) Just tell me if they tried to vectorize the loop. End your answer with either the string "The student passes" if they tried to do a vectorized loop, or "The student fails" if they just wrote a for loop again.
Yes, the student attempted to vectorize the loop. They: 1. Used numpy arrays 2. Created a mask using np.arange instead of iterating 3. Used numpy's minimum function for vectorized comparison 4. Applied operations across the entire array at once using boolean indexing 5. Eliminated the explicit for loop The student passes
Testing if the previous output contains the string student passes
: True
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | import numpy as np def update(high, highest_number, delta): # Create a boolean mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation high[mask] = np.minimum( high[mask], high[highest_number] + delta[highest_number] - delta[mask] ) return high import numpy as np answer = list(update(np.array([2, 5, 9, 1, 2, 0, 3, 8]), 4, np.array([1, 2, 1, 4, 3, 2, 1, 2]))) expected = [2, 3, 4, 1, 2, 0, 3, 3] 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
Vectorize this update loop. Call the function `update`: import numpy as np def update(high, highest_number, delta): for i in range(len(high)): if i != highest_number: high[i] = min(high[i], high[highest_number] + delta[highest_number] - delta[i]) return high
Vectorize this update loop. Call the function `update`: import numpy as np def update(high, highest_number, delta): for i in range(len(high)): if i != highest_number: high[i] = min(high[i], high[highest_number] + delta[highest_number] - delta[i]) return high
Here's the vectorized version of the update loop:
1 2 3 4 5 6 7 8 9 10 11 12 13 | import numpy as np def update(high, highest_number, delta): # Create a boolean mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation high[mask] = np.minimum( high[mask], high[highest_number] + delta[highest_number] - delta[mask] ) return high |
I extracted the following code from that output:
1 2 3 4 5 6 7 8 9 10 11 12 13 | import numpy as np def update(high, highest_number, delta): # Create a boolean mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation high[mask] = np.minimum( high[mask], high[highest_number] + delta[highest_number] - delta[mask] ) return high |
Below is a student's answer to a question about how to vectorize this loop: def update(high, highest_number, delta): for i in range(len(high)): if i != highest_number: high[i] = min(high[i], high[highest_number] + delta[highest_number] - delta[i]) return high Here is their code: import numpy as np def update(high, highest_number, delta): # Create a boolean mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation high[mask] = np.minimum( high[mask], high[highest_number] + delta[highest_number] - delta[mask] ) return high Did the student try to vectorize the loop? Don't tell me if they are correct or not. (I have tests for that separately which will catch any bugs.) Just tell me if they tried to vectorize the loop. End your answer with either the string "The student passes" if they tried to do a vectorized loop, or "The student fails" if they just wrote a for loop again.
Yes, the student attempted to vectorize the loop. They: 1. Used numpy arrays and operations 2. Created a mask using np.arange instead of iterating 3. Used np.minimum instead of min in a loop 4. Applied operations to all relevant elements at once using array operations The student passes
Testing if the previous output contains the string student passes
: True
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | import numpy as np def update(high, highest_number, delta): # Create a boolean mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation high[mask] = np.minimum( high[mask], high[highest_number] + delta[highest_number] - delta[mask] ) return high import numpy as np answer = list(update(np.array([2, 5, 9, 1, 2, 0, 3, 8]), 4, np.array([1, 2, 1, 4, 3, 2, 1, 2]))) expected = [2, 3, 4, 1, 2, 0, 3, 3] 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
Vectorize this update loop. Call the function `update`: import numpy as np def update(high, highest_number, delta): for i in range(len(high)): if i != highest_number: high[i] = min(high[i], high[highest_number] + delta[highest_number] - delta[i]) return high
Vectorize this update loop. Call the function `update`: import numpy as np def update(high, highest_number, delta): for i in range(len(high)): if i != highest_number: high[i] = min(high[i], high[highest_number] + delta[highest_number] - delta[i]) return high
Here's the vectorized version of the update loop:
1 2 3 4 5 6 7 8 9 10 11 12 13 | import numpy as np def update(high, highest_number, delta): # Create a boolean mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation new_values = high[highest_number] + delta[highest_number] - delta # Update only the elements where mask is True high[mask] = np.minimum(high[mask], new_values[mask]) return high |
I extracted the following code from that output:
1 2 3 4 5 6 7 8 9 10 11 12 13 | import numpy as np def update(high, highest_number, delta): # Create a boolean mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation new_values = high[highest_number] + delta[highest_number] - delta # Update only the elements where mask is True high[mask] = np.minimum(high[mask], new_values[mask]) return high |
Below is a student's answer to a question about how to vectorize this loop: def update(high, highest_number, delta): for i in range(len(high)): if i != highest_number: high[i] = min(high[i], high[highest_number] + delta[highest_number] - delta[i]) return high Here is their code: import numpy as np def update(high, highest_number, delta): # Create a boolean mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation new_values = high[highest_number] + delta[highest_number] - delta # Update only the elements where mask is True high[mask] = np.minimum(high[mask], new_values[mask]) return high Did the student try to vectorize the loop? Don't tell me if they are correct or not. (I have tests for that separately which will catch any bugs.) Just tell me if they tried to vectorize the loop. End your answer with either the string "The student passes" if they tried to do a vectorized loop, or "The student fails" if they just wrote a for loop again.
Yes, the student has attempted to vectorize the loop. They've removed the explicit for loop and replaced it with NumPy operations that work on entire arrays at once: - They use boolean masking with np.arange - They perform array-wide operations with delta - They use np.minimum for element-wise comparison - All operations are done on vectors/arrays rather than individual elements The student passes
Testing if the previous output contains the string student passes
: True
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | import numpy as np def update(high, highest_number, delta): # Create a boolean mask for all indices except highest_number mask = np.arange(len(high)) != highest_number # Vectorized computation new_values = high[highest_number] + delta[highest_number] - delta # Update only the elements where mask is True high[mask] = np.minimum(high[mask], new_values[mask]) return high import numpy as np answer = list(update(np.array([2, 5, 9, 1, 2, 0, 3, 8]), 4, np.array([1, 2, 1, 4, 3, 2, 1, 2]))) expected = [2, 3, 4, 1, 2, 0, 3, 3] 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