Array - 37: Find all Quadruple for given Sum

Source Code:thecodingsimpl...
Solution:
- Sort the array
- Take two loop & iterate each element
- Now for each element, you check if there exists a pair whose sum is equal to targetSum - current value
- When you find out value, you add in final list, else you increase start or decrease end depending on value addition
Time Complexity: O(n * n * n)
Space Complexity: O(1)
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