2020 NA Regionals Practice Contest 9
        
                            
    
                    
     
    
    
    
                
        
            
                
                                        
                        
                            | Submissions | 
                            16315 | 
                        
                        
                            | Accepted submissions | 
                            5153 | 
                        
                        
                            | Submission ratio | 
                            
                                                                    31.58%
                                                             | 
                        
                        
                            | Authors | 
                            4798 | 
                        
                        
                            | Full solves [?] | 
                            4399 | 
                        
                        
                            | Full solve Ratio | 
                            
                                                                    91.68%
                                                             | 
                        
                    
                                     
                                
                                        
                    
                    
                
             
        
                    
                            
                
        
        
    
    
                    
                                                                                    
                                                                    
                                            
                                            
                                                        
                                             | # | User | Runtime | Language | Date |  | 
|---|
| 1 | Hidden user | 0.01 s | Common Lisp | 2020-01-26 08:22:09 |  | 
| 2 | crusoe | 0.01 s | Common Lisp | 2020-07-31 07:13:04 |  | 
| 3 | David Cawthon | 0.01 s | Common Lisp | 2020-09-12 16:13:10 |  | 
  
                            
                                                                                                        
                                                                                            
                                            
                                                        
                                            
                                             | # | User | Runtime | Language | Date |  | 
|---|
| 1 | Hidden user | 0.04 s | JavaScript (Node.js) | 2024-11-04 07:12:35 |  | 
| 2 | Rizky Muliawan | 0.05 s | JavaScript (Node.js) | 2024-02-22 12:15:25 |  | 
| 3 | anchorpad | 0.09 s | JavaScript (Node.js) | 2023-01-14 07:16:33 |  | 
| 4 | Peter Kedemo | 0.42 s | JavaScript (Node.js) | 2020-01-01 12:40:05 |  | 
| 5 | Antony Santos | 0.42 s | JavaScript (Node.js) | 2020-03-27 20:25:07 |  | 
| 6 | Hidden user | 0.42 s | JavaScript (Node.js) | 2020-08-06 23:35:26 |  | 
| 7 | Andoko Chandra | 0.42 s | JavaScript (Node.js) | 2020-10-13 15:13:20 |  | 
| 8 | Imran Brown | 0.42 s | JavaScript (Node.js) | 2020-11-11 03:56:20 |  | 
| 9 | Howard Tin Chi Chan | 0.42 s | JavaScript (Node.js) | 2021-03-05 09:37:54 |  | 
| 10 | Chris Wong | 0.42 s | JavaScript (Node.js) | 2021-03-05 11:38:36 |  | 
  
                            
                                            
                                            
                                            
                                            
                                                                                
                                                                    
                                                        
                                             | # | User | Runtime | Language | Date |  | 
|---|
| 1 | Connor Billings | 0.01 s | PHP | 2020-01-02 01:58:43 |  | 
| 2 | 陳建宏 | 0.01 s | PHP | 2021-05-04 17:52:30 |  | 
| 3 | Renate | 0.01 s | PHP | 2021-05-11 02:36:33 |  | 
| 4 | Mochi Cake  | 0.01 s | PHP | 2023-09-17 17:42:30 |  | 
  
                            
                                                        
                                            
                                            
                                                        
                                             | # | User | Runtime | Language | Date |  | 
|---|
| 1 | Hidden user | 0.04 s | Ruby | 2019-12-17 00:37:24 |  | 
| 2 | Hidden user | 0.05 s | Ruby | 2021-07-04 12:54:23 |  | 
| 3 | Thomas Feld | 0.06 s | Ruby | 2023-01-11 12:12:10 |  | 
| 4 | michael r lederle | 0.06 s | Ruby | 2023-01-13 04:38:25 |  | 
| 5 | Blake Dixon | 0.07 s | Ruby | 2023-11-14 03:14:02 |  | 
| 6 | Russell Ng | 0.07 s | Ruby | 2025-05-20 09:43:33 |  | 
| 7 | Chenzhang Hu | 0.12 s | Ruby | 2025-09-22 16:09:25 |  | 
  
                            
                                            
                                                                                
                                             | # | User | Runtime | Language | Date |  | 
|---|
| 1 | Hidden user | 0.00 s | Swift | 2024-09-03 21:25:18 |  | 
  
                            
                                                
            
                            
                
        
        
    
    
                                                                                    
                                                                    
                                            
                                            
                                                        
                                             | # | User | Length | Language | Date |  | 
|---|
| 1 | crusoe | 203 | Common Lisp | 2020-07-31 07:13:04 |  | 
| 2 | Hidden user | 250 | Common Lisp | 2020-01-26 08:30:32 |  | 
| 3 | David Cawthon | 313 | Common Lisp | 2020-09-12 16:13:10 |  | 
  
                            
                                                                                                        
                                                                                            
                                            
                                                        
                                            
                                             | # | User | Length | Language | Date |  | 
|---|
| 1 | Peter Kedemo | 318 | JavaScript (Node.js) | 2020-01-01 12:40:05 |  | 
| 2 | Erick De Santiago Anaya | 406 | JavaScript (Node.js) | 2021-05-22 01:02:58 |  | 
| 3 | Rizky Muliawan | 430 | JavaScript (Node.js) | 2024-02-22 12:15:25 |  | 
| 4 | Chris Wong | 471 | JavaScript (Node.js) | 2021-03-05 11:38:36 |  | 
| 5 | Hidden user | 481 | JavaScript (Node.js) | 2020-08-06 23:35:26 |  | 
| 6 | anchorpad | 491 | JavaScript (Node.js) | 2023-01-14 07:16:33 |  | 
| 7 | Bart Louwers | 512 | JavaScript (Node.js) | 2022-02-06 13:46:02 |  | 
| 8 | Imran Brown | 525 | JavaScript (Node.js) | 2020-11-11 03:56:20 |  | 
| 9 | Howard Tin Chi Chan | 538 | JavaScript (Node.js) | 2021-03-05 09:37:54 |  | 
| 10 | Hidden user | 593 | JavaScript (Node.js) | 2024-11-04 07:12:35 |  | 
  
                            
                                            
                                            
                                            
                                            
                                                                                
                                                                    
                                                        
                                                        
                                            
                                            
                                                        
                                            
                                                                                
                                             | # | User | Length | Language | Date |  | 
|---|
| 1 | Hidden user | 369 | Swift | 2024-09-03 21:25:18 |  | 
  
                            
                                                
            
            Solution running time distribution