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1 parent af59f5c commit 54f02a4Copy full SHA for 54f02a4
data_structures/arrays/sudoku_solver.py
@@ -23,7 +23,7 @@ def cross(items_a, items_b):
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+ [cross(rs, cs) for rs in ("ABC", "DEF", "GHI") for cs in ("123", "456", "789")]
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)
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units = {s: [u for u in unitlist if s in u] for s in squares}
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-peers = {s: set(sum(units[s], [])) - {s} for s in squares}
+peers = {s: set(sum(units[s], [])) - {s} for s in squares}
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def test():
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