Lecture
Explanation for Recursively Calculating the Sum of a List
Write a function that calculates the sum of all elements in a list.
This function uses recursion and slicing.
Sample Solution
def solution(numbers): # Return 0 if the list is empty if not numbers: return 0 else: # Calculate the recursive sum of the first element and the rest of the list return numbers[0] + solution(numbers[1:])
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if not numberschecks if the list is empty. If it is, it returns 0. -
numbers[0] + solution(numbers[1:])calculates the recursive sum of the first element and the rest of the list.
Example Usage
Input/Output Example
print(solution([1, 2, 3, 4, 5])) # Output: 15
Previous lessonCoding Quiz - Calculating the Sum of a List RecursivelyNext lessonCoding Quiz - 1, 2, 3 Addition
Lessons in this chapter · Practice with Common Coding Quiz Types
- 1. Coding Quiz - Finding Rotten Apples
- 2. Finding Rotten Apples Explained
- 3. Coding Quiz - Calculating the Sum of a List Recursively
- 4. Explanation for Recursively Calculating the Sum of a List
- 5. Coding Quiz - 1, 2, 3 Addition
- 6. Explanation for Adding 1, 2, 3
- 7. Coding Quiz - Flattening a 2D Array
- 8. Converting to a 1D Array Explanation
- 9. Coding Quiz - Calculate the Sum of a List Using Divide and Conquer
- 10. Explanation of Calculating the Sum of a List Using Divide and Conquer
- 11. Coding Quiz - Gym Uniform Problem
- 12. Gym Uniform Problem Explanation
- 13. Coding Quiz - List of Integers with Sum Greater than Target
- 14. Explanation of Integer List with Sum Greater Than Target
- 15. Coding Quiz - Finding Travel Routes
- 16. Finding Travel Itinerary Explanation
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