// Summary Ranges — EASY

// Category: array

You are given a **sorted unique** integer array `nums`.

A **range** `[a, b]` is the set of all integers from `a` to `b` (inclusive). Return the **smallest sorted** list of ranges that cover all the numbers in the array exactly. That is, each element of `nums` is covered by exactly one of the ranges, and there is no integer `x` such that `x` is in one of the ranges but not in `nums`.

Each range `[a, b]` in the list should be output as:

- `"a->b"` if `a != b`

Example: nums = [0,1,2,4,5,7]

Output: ["0->2","4->5","7"]