HYNB Round 15: PKU Campus 2019
C. Parade
Title intended to plane n * 2 dots arranged in two rows on the length of n.
practice
- First negligible influence between each point, match can only be considered
- So then point reduction to the two lines, and then from left to right to consider the (considering how many times each divider is through)
- When the game was greedy rule the ...
G. Go and Oreo
Meaning of the questions to the n * n squares of black and white coloring, the number of Oreo
practice
- By considering grid, contour DP Lite
- Race row has been considered, then would not the