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Arboretum (1057)
Instruction:
Draw cell edges along the dotted lines such that the grid is divided into regions named "trees", each one containing exactly one circled cell, and there is a unique path to get from any cell to a circled cell (going orthogonally through dotted lines). Any non-circled cell with only one undrawn edge is considered a "leaf". Each tree must have at least one leaf. For each tree, all its leaves are in different rows and different columns. If a circled cell is numbered, that number represents the number of leaves in that cell's tree.