If you're looking for more puzzles, Mashable's got games now! Check out our games hub for Mahjong, Sudoku, free crossword, and more.
Maps iterate as key-value pairs:,更多细节参见新收录的资料
Each edge (u,v) creates conflicts: nu version K conflicts with nv version K for all K,这一点在新收录的资料中也有详细论述
If you're looking for more puzzles, Mashable's got games now! Check out our games hub for Mahjong, Sudoku, free crossword, and more.
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