list pop_back() function in C++ STL

The list::pop_back() is a built-in function in C++ STL which is used to remove an element from the back of a list container. That is, this function deletes the last element of a list container. This function thus decreases the size of the container by 1 as it deletes an element from the end of the list.

Syntax

list_name.pop_back();

Parameters

• The function does not accept any parameter.

Return Value

• This function does not return anything.

Example

The below program illustrates the list::pop_back() function in C++ STL.

Initial List: 10 20 30 40 

List after removing an element from end: 10 20 30 

Time Complexity: O(1)
Auxiliary Space: O(1)