Previous Year Very Short Questions of DAA (B-TECH computer science engineering 5th)

Design and analysis of algorithms

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  1. What is the time complexity of linear search?
  2. Define algorithm
  3. What is Fast Fourier Transform (FFT)?
  4. Explain divide and conquer technique
  5. Give the recurrence relation for the time complexity of merge sort algorithm.
  6. Differentiate between exponential versus polynomial running time.
  7. State the principle of optimality used in dynamic programming.
  8. How is the accuracy of approximation algorithm measured?
  9. Algorithm A performs 10n 2 basic operations, and algorithm B performs 300 logn basic operations. For what value of n does algorithm B start to show its better performance?
  10. What do you mean by NP-complete?
  11. What do you mean by Amortized Analysis?
  12. What is Big ‘Oh’ notation?
  13. Define direct recursive and indirect recursive algorithms.
  14. What do you mean by time complexity and space complexity of an algorithm?
  15. Define control abstraction
  16. What are the features of dynamic programming?
  17. Define explicit constraint
  18. Define Branch-and-Bound method
  19. What are the factors that influence the efficiency of the backtracking algorithm?
  20. What is NP hard problem?
  21. Show that for any real constants a and b, where b > 0, (n + a)b = θ(nb)
  22. What is the time complexity of conventional matrix multiplication method and Strassen's matrix multiplication method?
  23. What-is the advantage of using merge-sort algorithm over quick-sort algorithm?
  24. What are NP-complete problems? Give examples.
  25. What are the applications of BFS and DFS algorithms?
  26. What are the basic steps in divide-and-conquer strategy of algorithm design? Out of these basic steps which step is not always required even if problem instance is big?
  27. What are the time complexities of pre-processing stage and matching stage of KnuthMorris-Pratt string matching algorithm?
  28. What do you mean by polynomial time reduction?
  29. What would be the running time of radix sort on an array of n integers in the range 0 ... n5 -1 when base-10 representation is used?
  30. Define convex hull.