Adding Leet Code Problems 3 and 234 #107
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Longest Substring Without Repeating Characters:
Problem Statement: Find the length of the longest substring without repeating characters in a given string.
Time Complexity: O(n)
Space Complexity: O(1)
Palindrome Linked List
Problem Statement: Determine if a singly linked list is a palindrome.
Time Complexity: O(n)
Space Complexity: O(1)
Each solution is implemented in C++ and follows a clear and efficient approach to solve the respective problems.
Proper comments are included for clarity and understanding.