| Problem | Solutions | Attempts | First Solved |
|---|---|---|---|
| A. Palindromic Substring | 12 | 12 | 0:04:57 |
| B. Ray's Xor query | 5 | 6 | 1:32:46 |
| C. Sum of two composite number | 12 | 15 | 0:21:04 |
| D. Find the number | 6 | 12 | 0:50:07 |
| E. Find The Hidden Sequence | 2 | 3 | 0:37:13 |
| F. BLACKPINK in Your Area! | 6 | 9 | 0:43:24 |
| G. What happens to the heart | 0 | 0 | Unsolved |
| H. Find the lcm | 15 | 15 | 0:02:01 |
