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Lecture 30

Lecture 30. CSE 331 Nov 13, 2009. To be strictly enforced. For the rest of the semester on Fridays. SUBMIT. your. HOMEWORKS. by. 1:10 PM. At the end of the lecture. Graded HW 7 and HW 9. On Jaynee’s order. Reminder: Resignation deadline is today. Divide and Conquer.

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Lecture 30

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  1. Lecture 30 CSE 331 Nov 13, 2009

  2. To be strictly enforced For the rest of the semester on Fridays SUBMIT your HOMEWORKS by 1:10 PM

  3. At the end of the lecture Graded HW 7 and HW 9

  4. On Jaynee’s order Reminder: Resignation deadline is today

  5. Divide and Conquer Divide up the problem into at least two sub-problems Recursively solve the sub-problems “Patch up” the solutions to the sub-problems for the final solution

  6. Improvements on a smaller scale Greedy algorithms: exponential  poly time Divide and Conquer: O(n2)  asymptotically smaller running time

  7. Multiplying two numbers Given two numbers a and b as binary a=(an-1,..,a0) and b = (bn-1,…,b0) Running time of primary school algorithm? Compute c = a x b

  8. To be strictly enforced For the rest of the semester on Fridays SUBMIT your HOMEWORKS by 1:10 PM

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