| # | When? | Question | Answer |
|---|---|---|---|
| 1 | 3 weeks, 1 day ago |
J - Judicious XORcery The statement of problem J has been updated to explain a detail: The ⊕ operator refers to bitwise exclusive or (xor). |
... |
| 2 | 3 weeks, 1 day ago |
K - Kekkaishi For a spirit to be contained, the border of the box must not superpose it? |
A spirit on the border of the barrier is considered to be contained in the barrier. |