1999 IMO Problems/Problem 3
Problem
Consider an square board, where is a fixed even positive integer. The board is divided into units squares. We say that two different squares on the board are adjacent if they have a common side.
unit squares on the board are marked in such a way that every square (marked or unmarked) on the board is adjacent to at least one marked square.
Determine the smallest possible value of .
Solution
This problem needs a solution. If you have a solution for it, please help us out by adding it.
See Also
1999 IMO (Problems) • Resources | ||
Preceded by Problem 2 |
1 • 2 • 3 • 4 • 5 • 6 | Followed by Problem 4 |
All IMO Problems and Solutions |