Answered: 17 /** Returns the sum of the prefix… | bartleby

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giving a big-Oh characterization , in terms of n, of the running time of following methods

17 /** Returns the sum of the prefix sums of given array. */
18 public static int example3(int[] arr) {
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27222
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}
int n = arr.length, total = 0;
for (int i=0; j<n; j++)
for (int k=0; k <= j; k++)
total += arr[j];
return total;
// loop from 0 to n-1
// loop from 0 to j

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