std::vector::pop_back
From cppreference.com
                    
                                        
                    
                    
                                                            
                    
|   void pop_back(); 
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Removes the last element of the container.
Calling pop_back on an empty container is undefined.
No iterators or references except for back() and end() are invalidated.
Contents | 
[edit] Parameters
(none)
[edit] Return value
(none)
[edit] Complexity
Constant.
[edit] Exceptions
(none)
[edit] See also
|    adds an element to the end  (public member function)  |