| Problem ID | Title | Source/Category | AC | Submit | |
| 1218 Problem A | Interesting number | 195 | 415 | ||
| 1256 Problem B | Lucky number | 189 | 671 | ||
| 1258 Problem C | Only 3-sum | 177 | 1619 | ||
| 1257 Problem D | Vinceblack's store | 167 | 1005 | ||
| 1221 Problem E | Excellent power | 113 | 1685 | ||
| 1259 Problem F | YYJ's magic beads | 73 | 581 |