Start 2026-04-18 13:14:46

【2027省选】20260418模拟赛更正

End 2026-04-25 00:00:00
Contest is over.
Now 2026-06-05 08:29:40

B. 【BJ】T2

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Output

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                        Time Limit
                        
                            2 seconds                        
                    

                    

                        Memory Limit
                        1024 MB
                    

                    
                

            


            
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