Question: We say that the string x = x 1 x 2 ... x n is a subsequence of the string y = y 1 y

We say that the string x = x₁x₂ ... x_n is a subsequence of the string y = y_1y₂ ... y_m in the usual way: We say that the string x = x1x2 ... xn is a and there are indices such that, way: and there are indices such that, . The goal is a . The goal is a greedy strategy to test in O(n+m) time whether x is a subsequence of y (no code is required)

(a) Describe the greedy choice

(b) Justify the correctness of your greedy choice.

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3. Did you seek anyones advice?

7. What traps should she avoid?

5. What decision-making model would you advocate to this person?