NAKK's favorites
| # | Problem |
|---|---|
| 170 | OMCB003(C) |
| 10556 | OMC246(B) |
| 167 | OMCB002(D) |
| 166 | OMCB002(C) |
| 163 | OMCB001(D) |
| 16142 | OMCB071(D) |
| 16285 | OMCB071(B) |
| 15898 | OMCB070(E) |
| 15523 | OMCB070(C) |
| 37 | OMC005(B) |
| 34 | OMC004(C) |
| 32 | OMC004(A) |
| 28 | OMC003(A) |
| 23 | OMC001(D) |
| 27 | OMC002(D) |
| 12426 | OMC276(C) |
| 11647 | OMC277(C) |