Fill in the blanks in the function such that it works as intended. def deep_add(collection): if isinstance (collection, int): #Checks if collection is an int return elif collection == return []:
Fill in the blanks in the function such that it works as intended. def deep_add(collection): if isinstance (collection, int): #Checks if collection is an int return elif collection == return []:
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
![The following function is designed to take in a nested list structure of unknown depth, where each element at every level is either an integer or a list. The function should return a copy of the nested list structure, but with all integer values increased by 1.
Fill in the blanks in the function such that it works as intended.
```python
def deep_add(collection):
if isinstance(collection, int): # Checks if collection is an int
return _____
elif collection == []:
return _____
else:
return [deep_add(collection[0])] + _____
```
**Explanation of the Code:**
- The function `deep_add` processes a nested list.
- It checks if the current item, `collection`, is an integer. If it is, it returns the integer increased by 1.
- If `collection` is an empty list, it simply returns the empty list.
- If `collection` is a non-empty list, it recursively processes the first element, combines it with the result of processing the rest of the list, and returns the modified list.
This function effectively traverses the nested list structure and increments each integer by one, maintaining the original list's structure.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F73c82dab-30bf-4ce1-8c49-224072f42005%2F48900b0b-ff22-4fdc-ade9-331efd223b81%2F3fie4pa_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The following function is designed to take in a nested list structure of unknown depth, where each element at every level is either an integer or a list. The function should return a copy of the nested list structure, but with all integer values increased by 1.
Fill in the blanks in the function such that it works as intended.
```python
def deep_add(collection):
if isinstance(collection, int): # Checks if collection is an int
return _____
elif collection == []:
return _____
else:
return [deep_add(collection[0])] + _____
```
**Explanation of the Code:**
- The function `deep_add` processes a nested list.
- It checks if the current item, `collection`, is an integer. If it is, it returns the integer increased by 1.
- If `collection` is an empty list, it simply returns the empty list.
- If `collection` is a non-empty list, it recursively processes the first element, combines it with the result of processing the rest of the list, and returns the modified list.
This function effectively traverses the nested list structure and increments each integer by one, maintaining the original list's structure.
![**Examples:**
```python
>>> deep_add([[3, -4, [15]], 0, [[[1]], 61]])
[[4, -3, [16]], 1, [[[2]], 62]]
>>> deep_add([1, [2, 3], [], [4, 5, [6]], 1])
[2, [3, 4], [], [5, 6, [7]], 2]
>>> deep_add([[[[7]]]])
[[[[8]]]]
```
These examples illustrate the use of the `deep_add` function, which increments each integer within deeply nested lists by one. The function traverses all levels of nested lists and applies the addition recursively, updating each integer encountered.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F73c82dab-30bf-4ce1-8c49-224072f42005%2F48900b0b-ff22-4fdc-ade9-331efd223b81%2Fvv69rkd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Examples:**
```python
>>> deep_add([[3, -4, [15]], 0, [[[1]], 61]])
[[4, -3, [16]], 1, [[[2]], 62]]
>>> deep_add([1, [2, 3], [], [4, 5, [6]], 1])
[2, [3, 4], [], [5, 6, [7]], 2]
>>> deep_add([[[[7]]]])
[[[[8]]]]
```
These examples illustrate the use of the `deep_add` function, which increments each integer within deeply nested lists by one. The function traverses all levels of nested lists and applies the addition recursively, updating each integer encountered.
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