Start 2024-05-06 12:25:56

【2025省选前】20240506更正

End 2024-05-18 00:00:00
Contest is over.
Now 2026-04-18 21:02:21

C. 【BJ】T3

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                        Time Limit
                        
                            1 second                        
                    

                    

                        Memory Limit
                        256 MB
                    

                    
                

            


            
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