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Example. Suppose n = 7, and the sequence of prices is 10, 1, 2, 11, 3, 4, 12. Then the longest rising trend is given
Example. Suppose n = 7, and the sequence of prices is 10, 1, 2, 11, 3, 4, 12. Then the longest rising trend is given by the prices on days 2, 3, 5, 6 and 7.
1. Give an O(n2) running time algorithm that takes a sequence of pricesP [1], P [2], . . . , P [n] and returns the length of the longest rising trend.
2. Give an O(n log n) running time algorithm that takes a sequence of pricesP [1], P [2], . . . , P [n] and returns the length of the longest rising trend.
Your friends have been studying the closing prices of tech stocks, looking for interesting patterns They've defined something called a rising trend, as follows. They have the closing price for a given stock recorded for n days in succession; let these prices be denoted P[1], P[2],... , P[n]. A rising trend in these prices is a subsequence of the prices Plij, Pli). . . . , Plik], for days ii12.. ., so that PlilStep by Step Solution
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