Start 2025-10-21 12:27:52

【2026省选】20251021模拟赛-1更正

End 2025-10-31 00:00:00
Contest is over.
Now 2026-04-18 22:56:35

A. 【BJ】T1

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                        Time Limit
                        
                            1 second                        
                    

                    

                        Memory Limit
                        256 MB
                    

                    
                

            


            
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