Creating a list of N distinct random integers

It is necessary to implement a function that returns N unique integers as a slice ([]int).

Requirements:

• Use the math/rand package for generation (for example, rand.Int()).
• The resulting slice should not contain duplicate values.
• The solution should be efficient for large values of N, avoiding infinite or excessively long loops when selecting new numbers.

Example function signature: func GenerateUnique(count int) []int.

Important: keep all mentioned code elements unchanged, only modify the wording and variable names in the text.