ProgramBasis's editorials
| # | Problem |
|---|---|
| 809 | OMC242(C) |
| 852 | OMC244(E) |
| 912 | OMCB043(G) |
| 914 | OMC249(A) |
| 992 | OMC255(B) |
| 993 | OMC255(D) |
| 1006 | OMCB050(E) |
| 1030 | OMCE017(A) |
| 1045 | OMC259(C) |
| 1057 | OMCB054(B) |
| 1071 | OMCB055(E) |
| 1211 | OMC272(E) |
| 1213 | OMCB065(C) |
| 1214 | OMC272(F) |
| 1226 | OMCB066(B) |