快速幂和组合数
    
    
    
    
    
        
        
        
        
            
                
                    | 问题 | 
                    AC | 
                    PE | 
                    WA | 
                    TLE | 
                    MLE | 
                    OLE | 
                    RE | 
                    CE | 
                    TR | 
                    Total | 
                
              
            
            
                | 4019 A | 3 | 
                                    0 | 
                                    5 | 
                                    1 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    TR | 
                                    41 | 
| 3980 B | 0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    TR | 
                                    0 | 
| 1131 C | 2 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    TR | 
                                    3961 | 
| 4656 D | 3 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    1 | 
                                    0 | 
                                    TR | 
                                    5 | 
| 4652 E | 4 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    1 | 
                                    0 | 
                                    TR | 
                                    5 | 
| 4653 F | 5 | 
                                    0 | 
                                    0 | 
                                    4 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    1 | 
                                    TR | 
                                    11 | 
| 4654 G | 3 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    3 | 
                                    0 | 
                                    TR | 
                                    6 | 
| 4655 H | 1 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    0 | 
                                    TR | 
                                    1 |