UGC-NET | UGC NET CS 2015 Dec – III | Question 17

Given two sequences X and Y : X = < a, b, c, b, d, a, b > Y = < b, d, c, a, b, a > . The longest common subsequence of X and Y is :

(A)

< b, c, a>

(B)

< c, a, b>

(C)

< b, c, a, a>

(D)

< b, c, b, a>

Answer: (D)

Explanation:

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