MathDB
Problems
Contests
National and Regional Contests
Latvia Contests
Latvia BW TST
2021 Latvia Baltic Way TST
P6
P6
Part of
2021 Latvia Baltic Way TST
Problems
(1)
Combi construction problem
Source: Latvian TST for Baltic Way 2021 P6
9/25/2021
Let's call
1
×
2
1 \times 2
1
×
2
rectangle, which can be a rotated, a domino. Prove that there exists polygon, who can be covered by dominoes in exactly
2021
2021
2021
different ways.
rectangle
rotation
domain
combinatorics