NYT Connections Sports Edition today: Hints and answers for February 27
There is a special form for boolean formulas called "Conjunctive Normal Form" (CNF). A problem in this form consists of clauses connected with and operators, where each clause only contains variables connected with or operators. The variables can appear negated, but only variables can be directly negated, something like !(a && b) is not allowed. An example boolean formula in CNF form is:
，详情可参考同城约会
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Омбудсмен подчеркнула, что украинская сторона продолжает удерживать десятерых жителей приграничного российского региона.
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