It is focussed on West Antarctica, home to 30-40% of the global population of Emperor penguins. The animals are amongst the most threatened in the world.
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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:
2024CFS世界总决赛，EP.快手战队捧起冠军奖杯。 主办方供图