Blanch
发表于 2025-3-25 07:12:04
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变化无常
发表于 2025-3-25 08:19:07
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EXUDE
发表于 2025-3-25 14:46:51
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heterogeneous
发表于 2025-3-25 17:09:51
Progress in Complexity of Counting Problems interrelated formulations: Graph Homomorphisms, Counting CSP, and Holant Problems. In each formulation, complexity dichotomy theorems have been achieved which classify every problem in a given class to be either solvable in polynomial time or #P-hard.
TOXIN
发表于 2025-3-25 21:49:33
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熔岩
发表于 2025-3-26 02:24:19
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FLASK
发表于 2025-3-26 05:19:26
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ectropion
发表于 2025-3-26 12:09:54
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hurricane
发表于 2025-3-26 15:21:50
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ERUPT
发表于 2025-3-26 20:12:53
The Grain Sector: Wheat is King,on is even worse. Different forms of farming have emerged, including private producer cooperatives. Also in some areas, an active land rental market has emerged but, as yet, there have been no private sales of farmland. Much of grain marketing is in the hands of state monopolies, and this will remain the case for several years.