Phương pháp đánh giá: Special Judge
| Subask đơnĐiểm mỗi test được cộng vào dạng phần trăm | |
| PRJCHAIN01.in | PRJCHAIN01.ans | 
| PRJCHAIN02.in | PRJCHAIN02.ans | 
| PRJCHAIN03.in | PRJCHAIN03.ans | 
| PRJCHAIN04.in | PRJCHAIN04.ans | 
| PRJCHAIN05.in | PRJCHAIN05.ans | 
| PRJCHAIN06.in | PRJCHAIN06.ans | 
| PRJCHAIN07.in | PRJCHAIN07.ans | 
| PRJCHAIN08.in | PRJCHAIN08.ans | 
| PRJCHAIN09.in | PRJCHAIN09.ans | 
| PRJCHAIN10.in | PRJCHAIN10.ans | 
| PRJCHAIN11.in | PRJCHAIN11.ans | 
| PRJCHAIN12.in | PRJCHAIN12.ans | 
| PRJCHAIN13.in | PRJCHAIN13.ans | 
| PRJCHAIN14.in | PRJCHAIN14.ans | 
| PRJCHAIN15.in | PRJCHAIN15.ans | 
| PRJCHAIN16.in | PRJCHAIN16.ans | 
| PRJCHAIN17.in | PRJCHAIN17.ans | 
| PRJCHAIN18.in | PRJCHAIN18.ans | 
| PRJCHAIN19.in | PRJCHAIN19.ans | 
| PRJCHAIN20.in | PRJCHAIN20.ans |