Python Bisect: Find four elements from a given array of integers whose sum is equal to a given number
9. Quadruplet Sum Equals Target
Write a Python program to find four elements from a given array of integers whose sum is equal to a given number. The solution set must not contain duplicate quadruplets.
Sample Solution:
Python Code:
Sample Output:
Array values & target value: [-2, -1, 1, 2, 3, 4, 5, 6] & 10 Solution Set: [[-2, 1, 5, 6], [-2, 2, 4, 6], [-2, 3, 4, 5], [-1, 1, 4, 6], [-1, 2, 3, 6], [-1, 2, 4, 5], [1, 2, 3, 4]]
Flowchart:

For more Practice: Solve these Related Problems:
- Write a Python program to find all unique quadruplets in an array that sum up to a given target, using a combination of binary search and two-pointer techniques.
- Write a Python script to implement a function that returns a list of quadruplets whose sum equals the target, ensuring that no duplicate quadruplets are included.
- Write a Python program to search for four numbers in an array that add up to a specified target using bisect for optimizing inner loop searches.
- Write a Python function to output all valid quadruplets from a sorted list that sum to a target value, taking care to skip duplicate values during iteration.
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