- assignment: Array of booleans. If the formula is satisfiable provide an assignment for each variable from 1 to N. If the formula is not satisfiable this field is null.
Up to 10 products
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items in it. append can just place the item in the existing backing
投票时间：2026 年 2 月 23 日至2026 年 3 月 8 日 23:59