Comparison between TIN and natural neighbour dithering, using a 16-colour irregular palette. Left to right: TIN, Natural Neighbour.
I learned that for 4-SAT, if clause to variable ratio is more than 10, the generated problems become difficult to solve, and the likelihood of formula to be SAT or UNSAT is close to 50%. So I generated 3 types of formulas:
。搜狗输入法2026对此有专业解读
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