— Donald Knuth
Finding subarrays or substrings (e.g., "Longest substring without repeating characters"). Problem Solving in Data Structures & Algorithms...
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 — Donald Knuth Finding subarrays or substrings (e