MAQ Software most Frequently Asked Questions

Algorithmic Problems:

  1. Detect a loop in a linked list
  2. Print matrix in a spiral order – Practice here
  3. Snake-Ladder problem
  4. N-queen problem for 8 queens
  5. Reverse a string wordwise – Practice here
  6. key and lock problem – Practice here
  7. Serialize and Deserialize a Binary Tree – Practice here
  8. Wap to print all permutations of a given string – Practice here
  9. Maximum area of a histogram – Practice here
  10. Given a number, generate all prime numbers till that number – Practice here
  11. Sort an array of 0s, 1s, 2s – Practice here
  12. Nth fibonacci number – Practice here
  13. Find Middle element of Linked List – Practice here
  14. Check if a linked list is Circular Linked List – Practice here

Others Subjects:

  1. SQL queries
  2. Basic Java concepts
  3. Indexing in DBMS
  4. B-tree and B+ Tree
  5. BST
  6. Deadlock
  7. Mutex and Semaphores


  1. Time and work
  2. Pipes and Cisterns
  3. Calendar Dates
  4. Common puzzles
  5. Speed and Distances

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