
## Overview

The **`back()` method** is used to get the last inserted element to the queue or to get the first element from the back of the queue.

In the diagram below, there is a queue, and the `back()` function will point to the last inserted element, such as `3`.


## Syntax

```
queue.back()
```

## Parameters

The method has no parameters.

## Return value

The method returns the last element of the queue.

#include <iostream>
#include <queue>

using namespace std;

int main() {
  queue<int> qu;
  qu.push(1);
  qu.push(2);
  qu.push(3);
  
  cout << "The back of the queue: " << qu.back();

}


## Explanation

- **Lines 8–10:** We insert the elements into the queue.
- **Line 12:** We use the `back()` method to retrieve the last element of the queue is retrieved.

What is the queue.back() function in C++?

Overview

Syntax

Parameters

Return value

Code

Explanation