Problem

2/9

Hiệp hội hai chiều

Problem

time 1000 ms
memory 256 Mb
Rules for program design and list of errors in automatic problem checking

Teacher commentary

Insert the missing code snippets
Java
Write the program below 


                                		
				

					
                                    
                                    


                                		
				

			

		

            
              

                
	

          
           
        
 
            

               
               
                      
                  
               

          
            
         
               

                    

                        
Program check result
                            
                            
                              
                              
                            
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