The so-called three lattices are the 2*2 chessboards that are missing a lattice. Given the incomplete chessboard of a 2n*2n, ask how to place three grid panels, so that excepting the incomplete, the other checkerboard is covered by the three grid, and the three grid boards do not overlap each other.

Filename	Size	Update
第1题	0	2017-12-30
第1题\1.cpp	2143	2017-01-03
第1题\1.exe	1947852	2017-01-03

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