True or false. The last step for solving the longest common subsequences problem while using dynamic programing is to extract a lcs from the DP table. if we modify it by changing the order of the three cases as follow (case line 2-4 has been swapped with the case in

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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Chapter1: Computer Networks And The Internet
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True or false. The last step for solving the longest common subsequences problem while using dynamic programing is to extract a lcs from the DP table. if we modify it by changing the order of the three cases as follow (case line 2-4 has been swapped with the case in line 7-8), it will still be able to output a lcs correctly.

The last step for solving the Longest Common Subsequence (LCS) problem using
dynamic programming is to extract a LCS from the DP table (array L). Consider the
Print-LCS procedure discussed in class. If we modify it by changing the order of
the three cases as follows (the case in lines 2-4 has been swapped with the case in
lines 7-8), it will still be able to output a LCS correctly.
Print-LCS (L, X, Y, m, n)
if m > 0 or n > 0
2
if L[m, n]
L[m - 1, n - 1] + 1
==
Print-LCS (L, X, Y, m - 1, n - 1)
4
Print (X[m])
5
else if L[m, n] == L[m, n - 1]
Print-LCS (L, X, Y, m, n
1)
7
else
8
Print-LCS (L, X, Y, m - 1, n)
True
False
LO
Transcribed Image Text:The last step for solving the Longest Common Subsequence (LCS) problem using dynamic programming is to extract a LCS from the DP table (array L). Consider the Print-LCS procedure discussed in class. If we modify it by changing the order of the three cases as follows (the case in lines 2-4 has been swapped with the case in lines 7-8), it will still be able to output a LCS correctly. Print-LCS (L, X, Y, m, n) if m > 0 or n > 0 2 if L[m, n] L[m - 1, n - 1] + 1 == Print-LCS (L, X, Y, m - 1, n - 1) 4 Print (X[m]) 5 else if L[m, n] == L[m, n - 1] Print-LCS (L, X, Y, m, n 1) 7 else 8 Print-LCS (L, X, Y, m - 1, n) True False LO
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