| 题目ID | 标题 | 来源 | 正确数 | 通过率 |
|---|---|---|---|---|
| 1504-POJ | Adding Reversed Numbers | Central Europe 1998 | 0 | ----% |
| 1505-POJ | Copying Books | Central Europe 1998 | 0 | ----% |
| 1506-POJ | Substitution Cipher | Central Europe 1998 | 0 | ----% |
| 1507-POJ | Commedia dell' arte | Central Europe 1998 | 0 | ----% |
| 1508-POJ | Skyscraper Floors | Central Europe 1998 | 0 | ----% |
| 1509-POJ | Glass Beads | Central Europe 1998 | 0 | ----% |
| 1510-POJ | Hares and Foxes | Central Europe 1998 | 0 | ----% |
| 1511-POJ | Invitation Cards | Central Europe 1998 | 0 | ----% |