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A solution is only as good as its handling of the "weird stuff." Always test for: (null, empty strings, 0). Single elements (an array of size 1). Large inputs (integer overflows). Duplicates (especially in sorting or searching). The Golden Rule
Get it working first, then make it fast, then make it clean. Problem Solving in Data Structures & Algorithms...
Finding the shortest path in an unweighted graph or tree level-order traversal. A solution is only as good as its
