# Challenge: Resizing a Vector

This lesson will check your knowledge of vectors.

## We'll cover the following

## Problem Statement #

Given a vector with an even number of elements, remove the last element from the input vector, and then the middle element. Then insert the sum of the remaining elements to the end of the resulting vector.

### Input #

```
A vector array
```

### Output #

```
An updated vector array
```

### Sample Input #

```
[1, 5, 7, 9]
```

### Sample Output #

```
[1, 7, 8]
```

## Coding Exercise #

Write your code below. It is recommended that you try solving the exercise yourself before viewing the solution.

Note:There is a`test`

function given in the code for testing purposes. Do not modify it.

Good luck! 🤞

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