Problems
| Problem | Category | Points | AC % | Users |
|---|---|---|---|---|
| R1GRAPH | Practice | 40 | 24.7% | 13 |
| R1SEQ | Practice | 22 | 6.9% | 8 |
| R1STORM | Practice | 50 | 18.1% | 11 |
| R2COUNT | Practice | 50 | 25.8% | 7 |
| R2CTAB | Practice | 40 | 0.0% | 0 |
| R2LEGO | Practice | 40 | 0.0% | 0 |
| R3GAMEX | Practice | 50 | 6.1% | 2 |
| R3PALIN | Practice | 30 | 7.6% | 5 |
| R3SGCD | Practice | 40 | 8.0% | 9 |
| R4BOR | Practice | 40 | 6.0% | 10 |
| R4COMP | Practice | 40 | 36.0% | 9 |
| R4TRAVEL | Practice | 40 | 15.3% | 8 |
| R5BINSTR | Practice | 40 | 8.1% | 5 |
| R5CIRCLE1 | Practice | 16 | 12.1% | 2 |
| R5CIRCLE2 | Practice | 12 | 6.7% | 3 |
| R5CIRCLE3 | Practice | 12 | 0.0% | 0 |
| R5TREE | Practice | 40 | 18.8% | 9 |
| R6CANDY | Practice | 46 | 13.5% | 12 |
| R6RED | Practice | 11 | 5.4% | 3 |
| R6SUMSEQ | Practice | 51 | 14.1% | 11 |
| R7BCL | Practice | 82 | 87.5% | 14 |
| R7MC | Practice | 20 | 16.5% | 14 |
| R7PATH | Practice | 56 | 9.4% | 12 |
| R8CARDS | Practice | 40 | 18.0% | 6 |
| R8ROOM | Practice | 81 | 3.1% | 3 |
| R8SEQBEAU | Practice | 86 | 36.8% | 6 |
| R9BOUQUET | Practice | 40 | 16.2% | 11 |
| R9HAPPY1 | Practice | 70 | 45.5% | 10 |
| R9HAPPY2 | Practice | 30 | 23.1% | 12 |
| R9STATION | Practice | 40 | 71.4% | 10 |
| RACE | QHD | 20 | 34.5% | 10 |
| RACEHORSE | Practice | 12 | 37.9% | 16 |
| RADIO | Practice | 70 | 0.0% | 0 |
| RANK | Practice | 100 | 0.0% | 0 |
| RAOCAY | HÌNH HỌC | 10 | 71.2% | 31 |
| RAT | Practice | 20 | 0.0% | 0 |
| RBGAME | QHD | 20 | 18.1% | 15 |
| RBOOKS | Practice | 13 | 44.7% | 39 |
| RECCOVER | QHD | 20 | 35.8% | 24 |
| RECPRIME | Practice | 20 | 41.4% | 11 |
| RECT | CTDL | 100 | 15.3% | 9 |
| RECTANGLE | Practice | 20 | 4.4% | 3 |
| RECTANGLE2 | QHD | 100 | 86.7% | 25 |
| RECTAREA | Practice | 100 | 8.3% | 7 |
| REFORM | DFS | 50 | 23.0% | 12 |
| RENTHOUSE | Practice | 19 | 28.1% | 15 |
| RENTMC | Practice | 100 | 38.2% | 30 |
| RENTROOM | Practice | 15 | 37.6% | 32 |
| REP | CTDL | 100 | 27.4% | 19 |
| REP2 | Practice | 20 | 19.5% | 11 |