To solve this riddle, you can use the brute force method, which involves checking the distance between every pair of points and finding the minimum distance. Alternatively, you can use a more efficient algorithm such as the divide and conquer approach.
The brute force method has a time complexity of O(N^2) as it involves checking the distance between every pair of points. The divide and conquer approach has a time complexity of O(NlogN) as it involves sorting the points and then finding the closest pair.
The brute force method has a space complexity of O(1) as it does not require any extra space. The divide and conquer approach has a space complexity of O(N) as it requires creating an array to store the sorted points.
No, this riddle cannot be solved in linear time as the best possible time complexity for any algorithm is O(NlogN).
Yes, the input should consist of a list of points in the form of (x, y) coordinates. The points can be represented as a 2D array or a list of tuples.