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1 KINGS COLLEGE OF ENGINEERING DEPARTMENT OF COMPUTER SCIENCE & ENGINEERING UNIT I ALGORITHM ANALYSIS 1. What is an Algorithm? May/June 2006, Nov/Dec State the Euclid s algorithm for finding GCD of two given numbers. 3. What are Sequential Algorithms? 4. What are Parallel Algorithms? 5. What is Exact and Approximation algorithm? 6. What is Algorithm Design Technique? Nov/Dec Define Flowchart. 8. Explain Algorithm s Correctness 9. What is Efficiency of algorithm? 10. What is generality of an algorithm? 11. What is algorithm s Optimality? 12. What do you mean by Sorting problem? 13. What do you mean by Searching problem? 14. What do you mean by Worst case-efficiency of an algorithm? 15. What do you mean by Best case-efficiency of an algorithm? 16. Define the Average-case efficiency of an algorithm? 17. What do you mean by Amortized efficiency? 18. How to measure the algorithm s efficiency? 19. What is called the basic operation of an algorithm? How to measure an algorithm s running time? 20. Define order of growth. 21. Define Big oh notation May/June 2006, April/May Prove that 100n+5 O (n 2 )? 23. Define Ω notation 24. Prove that n 3 Ω(n 2 )? 25. Define Θ - notation 26. Prove that( ½)n(n-1) Θ(n 2 ) 27. What is the use of Asymptotic Notations? 1. (a). Define the asymptotic notations used for best case average case and worst case analysis of algorithm. (8) (b)write an algorithm for finding maximum element of an array; perform best and average case complexity with appropriate order notations. (8) 2. Write an algorithm to find mean and variance of an array perform best, worst and average case complexity, defining the notations used for each type of analysis.
2 3. Derive the recurrence relation for Fibonacci series, perform complexity analysis for the same. 4. Explain the various asymptotic notations with the properties. 5. Explain linear search with example. UNIT II - DIVIDE AND CONQUER 1) Explain divide and conquer algorithms 2) Define Merge Sort 3) Define Binary Search 4) What can we say about the average case efficiency of binary search? 5) Define Binary Tree 6) How divide and conquer technique can be applied to binary trees? 7) Explain Internal and External Nodes 8) Define Preorder, inorder and postorder Traversal 9) Define the Internal Path Length 10) Define the External Path Length 11) Explain about greedy technique 12) Define Spanning Tree 13) Define Minimum Spanning Tree 14) Define min-heap 15) Define Kruskal's Algorithm 16) Define Prim's Algorithm 17) Explain Dijkstra's Algorithm 1)Explain Knapsack Problem.. 2)Explain the algorithm for maximum and minimum numbers in an array. 3)(a) Give a detailed note on Divide and Conquer techniques.(6) (b). Sort the following set of elements using merge sort (10) 12,24,8,71,4,23,6,89,56 4)Write An algorithm for searching an element using Binary search method. Give an example. 5)(a) write a pseudo code for a divide and conquer algorithm for merging two sorted arrays into a single sorted one. Explain with an example.(12) (b) Setup an solve a recurrence relation for the number of key comparisons made by the above pseudo code.(4) 6) (a) Write an algorithm to sort a set of N numbers using insertion sort.(8) (b) Trace the algorithm for the following set of numbers. 20,35,18,8,14,41,3,39 7)Explain in detail merge sort. Illustrate the algorithm with a numeric example. Provide complete analysis of the same. KINGS COLLEGE OF ENGINEERING Page 2
3 UNIT III - DYNAMIC PROGRAMMING 1)Define Dynamic Programming 2) Define Binomial Coefficient 3) Define Transitive closure 4) Explain Warshalls algorithm 4) Explain All-pair shortest-paths problem 5) Explain Floyd's algorithm 6) What does Floyd s algorithm do? 7) Explain principle of Optimality 8) Explain Optimal Binary Search Trees 9) Explain Knapsack problem 10) Explain the Memory Function technique 11) Explain Traveling salesman problem? 1)Solve the all-pairs shorest path problem for the digraph with the weight matrix given below. A B C D A 0 3 B 2 0 C D 6 0 2)Solve the following instance of the single source shortest path problem with vertex a as the source. 4 a 3 b c 7 d e 4 write the algorithm for the above problem. 3)How will you construct a optimal search tree with example. 4)Explain the Multistage graph with example. 5)Explain the 0/1 knapsack with an algorithm. 6)Describe the Traveling salesman problem & discuss how to solve it using Dynamic Programming. KINGS COLLEGE OF ENGINEERING Page 3
4 UNIT IV - BACKTRACKING l) Explain Backtracking 2) Explain State Space Tree 3) Explain promising and non promising node 4) Explain n-queens problem 5) Explain Subset-Sum Problem 6) Explain Branch and Bound Technique 7) Define Feasible Solution 8) Define Optimal solution 9)Mention two reasons to terminate a search path at the current node in a state-space tree of a branch and bound algorithm. 10) Explain Graph coloring problem. 11) Explain Knapsack Problem 1. What is Backtracking? Explain in detail. 2. Explain Subset-sum Problem & Discuss the possible solution strategies using backtracking. 3. Discuss the use of greedy method in solving knapsack problem and subset sum problem. 4. Write short notes on (a) Graph coloring (8) (b) 8-Queens problem (8) 5.Apply Backtracking technique to solve the following instance of the subset sum problems.s=(1,3,4,5) & d=11 6. Explain subset-sum problem and discuss the possible solution strategies using backtracking. 7. Explain 8-Queens problem with an algorithm. Explain why backtracking is defined as a default procedure of last resort for solving problems. (10+6) 8. Using Backtracking enumerate how can you solve the following problems (a) 8-queens problem (8) (b) Hamiltonian circuit problem (8) KINGS COLLEGE OF ENGINEERING Page 4
5 UNIT-V TRAVERSALS, BRANCH AND BOUND 1) Define tractable and intractable problems 2) Explain the theory of computational complexity 3)Explain class P problems 4)Explain undecidable problems 5) Explain the halting problem 6) Explain class NP problems 7)Explain NP-complete problems 8)When a decision problem is said to be polynomially reducible 9) Define a Heuristic 10) Explain NP-Hard problems 11)Define Traversals. 12)List out the techniques for traversals in graph. 13)What is articulation point. 1)Define spanning tree? Discuss the design steps in prims algorithm to construct minimum spanning tree with example. 2)Explain the method of binding the minimum spanning tree for a connected graph using prims algorithm. 3)Define spanning tree? Discuss the design steps in kruskal algorithm to construct minimum spanning tree with example. 4)Compare and contrast the depth first search and birth first search. How do they fit in to the decrease and conquer strategies. 5)Explain NP-hard and NP complete problems with example 6)Explain connected components and bi-connected components with pseudocode 7)Give a suitable example and explain the birth first search and depth first search algorithm. 8)What is branch and bound? Explain detail. 9)Discuss the solution for knapsack problem using branch bound techniques. KINGS COLLEGE OF ENGINEERING Page 5
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