Start 2026-11-04 13:42:23

【2027省选】20261104模拟赛更正

End 2026-11-14 00:00:00
Contest is over.
Now 2026-11-15 00:19:38

A. 【BJ】T1

描述

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输出

样例

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                        Time Limit
                        
                            1 second                        
                    

                    

                        Memory Limit
                        512 MB
                    

                    
                

            


            
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