KMP Algorithm
Linear-time pattern matching with failure function.
Rabin-Karp
Rolling hash pattern matching.
Longest Palindrome
Find longest palindromic substring.
Anagram Detection
Character frequency comparison.
String Compression
Run-length encoding.
String to Integer (atoi)
Parse integer from string with edge cases.
Valid Parentheses
Stack-based bracket matching.
Minimum Window Substring
Sliding window with frequency map.
Group Anagrams
Hash map keyed by sorted string.