Question: solve 5. Suppose you are given a binary code + for an alphabet that has n symbols. You are given this as an array A

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5. Suppose you are given a binary code + for an alphabet that has n symbols. You are given this as an array A of length n, where each entry is an ordered pair (2,y(xr)), where zr is a symbol in the alphabet and (r) is a binary string, the codeword for x. Let L = }7.-s |y(2)| be the sum of all codeword lengths. Design an O(L)-time algorithm that determines if + is a prefix code. (20 points)

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