Introduction - If you have any usage issues, please Google them yourself
C++ language with the board divided coverage of a 2k × 2k Algorithm in the composition of the board of squares, just a different box with the other box, saying that the box is a special box, and said the board is a special board. Cover problem in the board, the use of 4 different forms of L-type domino given special coverage on the board except in special box outside of all boxes