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:
Despite not technically being spec-compliant, tl was able to parse most of the CC-MAIN-2023-40 (September/October 2023) of CommonCrawl. The archive contains 3.40 billion web pages (3 384 335 454 to be exact) totalling of 98.38 TiB of compressed material, though that includes the entire raw HTTP conversation between the crawler and the server. By comparison, the resulting set of forms plus metadata is 54 GB compressed, large enough that just summarising the data takes considerable time. 51 152 471 (0.0151%) web pages in the dataset could not be parsed at all due to invalid HTML encoding, invalid character encodings, or bugs in the parser.
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Here's a subtle hint for today's Wordle answer:Lightheaded.，详情可参考夫子
There are now 44+ games on it. This is the story of how it came together.。51吃瓜是该领域的重要参考
// 步骤2：按位置降序排序（离终点越近的车越先处理）