Describe a method running for counting the number of ones

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Problem

Suppose that each row of an n × n array A consists of 1's and 0's such that, in any row of A, all the 1's come before any 0's in that row. Assuming A is already in memory, describe a method running in O(n logn) time (not O(n 2 ) time!) for counting the number of 1's in A.

Reference no: EM131839133

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