String2 articles
String
String problems range from simple manipulation to complex parsing. Pattern matching, encoding, and substring search appear frequently.
Trie Interview Questions for Software Engineers: Prefix Trees, Word Search, and Autocomplete
A practical trie interview prep guide for software engineers: the trie question families that repeat, the node-modeling mistakes that break good answers, and the shortest drill plan that makes prefix-tree rounds feel predictable.
Fin · Apr 9, 2026
Strings are arrays in disguise. Act like it.
Master the string patterns that actually show up in interviews — frequency counting, palindromes, parsing, and the tricks that turn O(n²) into O(n).
Fin · Apr 3, 2026