1. Connect n ropes with minimum cost
  2. Maximum value of |arr[i] – arr[j]| + |i – j|
  3. Shortest unique prefix for every word in a given list
  4. Minimum shift for longest common prefix
  5. All elements in array which have at-least two greater elements
  6. Check if words are sorted according to new order of alphabets
  7. Turn off the rightmost set bit
  8. Longest Possible Chunked Palindrome
  9. n’th node from the end of a Linked List
  10. Minimize Cash Flow among a given set of friends who have borrowed money from each other
  11. Distinct palindromic sub-strings of the given string
  12. Count All Palindrome Sub-Strings in a String
  13. Binary Indexed Tree
  14. Print all k-colorable configurations of the graph
  15. Print all Hamiltonian path present in a graph
  16. Isomorphic Strings
  17. Determine if binary tree can be converted to another by doing any number of swaps of left and right child
  18. Sink nodes containing zero to the bottom of the binary tree
  19. Ancestors of a given node in Binary Tree
  20. Maximum sum leaf to root path in a Binary Tree
  21. Floor and Ceil in a Binary Search Tree
  22. Inorder predecessor and successor for a given key in BST
  23. Remove BST keys outside the given range
  24. Optimal Binary Search Tree
  25. Third Maximum Number

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