Consider reading a stream of numbers in. You need to be able to look up the rank of a number x (the number of values that are less than or equal to x) from time to time. Create the algorithms and data structures needed to enable these processes. Implement the methods getRankOfNumber(int x), which returns the number of values less than or equal to x (excluding x itself), and track(int x), which is called when each number is created. EXAMPLE Stream(in order of appearance):5, 1, 4, 4, 5, 9, 7, 13, 3 getRankOfNumber(l) 0 getRankOfNumber(3) 1 getRankOfNumber(4) 3

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