there is a typo p1=1 not 3 . pls show calculation

2. (3 points) Let the price array be p = [0, 1,4,4,5) (P[0] = 0,p[1] = 3, etc.) Given a rod of length 4, what is the maximum revenue we can make and what is the optimal cut strategy? (Show your work by computing the r array and the optimal first cut we choose for each r[j]. then get the optimal cut strategy using by traceback.)