# Count of Sublists with Same First and Last Values

Given a list of integers `nums`

, return the number of sublists where the first element and the last element have the same value.

**Constraints**

`n ≤ 10,000`

where`n`

is length of`nums`

https://binarysearch.com/problems/Count-of-Sublists-with-Same-First-and-Last-Values

## Examples

### Example 1

**Input**

- nums =
`[1, 5, 3, 1]`

**Output**

- answer =
`5`

**Explanation**

The sublists with same first and last element are: `[1], [5], [3], [1], [1, 5, 3, 1]`

.

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