- Count distinct elements in every window
- Find anagrams in linked list
- Is it Fibonacci
- Fruit Into Baskets
- Substring with Concatenation of All Words
- Maximum of all subarrays of size k
- Subarray with 0 sum
- Subarray with given sum
- Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold
- Longest Duplicate Substring
- Subarray Product Less Than K
- Find All Anagrams in a String
- Minimum Size Subarray Sum
- Longest Substring Without Repeating Characters