Question

as defined in class, in an array a[1..], (a[i], a[j]) is an inversion if a[i] > a[j] and i < j. for example, inarray a[1..4]

Answer 1

In computer science, an inversion in an array refers to a pair of elements where the value of the first element is greater than the value of the second element, but the index of the first element is less than the index of the second element.

Step-by-step explanation:

In computer science, an inversion in an array refers to a pair of elements where the value of the first element is greater than the value of the second element, but the index of the first element is less than the index of the second element. For example, in an array a[1..4] with values [4, 1, 3, 2], the pair (4,1) is an inversion because 4 > 1 and 1 < 4. If you need more information or have a specific question about inversions or arrays, please provide additional details or clarify your request.