 
            
            
            
            
                4 May
                
                    2015
                
            
            
                4 May
                
                '15
                
            
            
            
        
    
                4:13 p.m.
            
        Hello, Is it really needed to create a new class called leaf ? I was thinking of storing a vector<key_type> in each node instead of a key_type element and this would handle both cases (one element / more elements) . Thank you, Cosmin