Piet Mondrian’s “Composition II with Red, Blue, and Yellow” (1930) is now free to use worldwide. Not everyone got the memo.
“It is no different than finding a dog in your backyard, looking at the collar and deciding whether or not to call the number,” he said.
。关于这个话题，新收录的资料提供了深入分析
There are many other kinds of proof objects https://www.philipzucker.com/proof_objects/ . A similar one that is useful is outputting a permutation from a sorting algorithm. Verifying a permutation takes O(n) but sorting under the appropriate assumptions takes O(n ln(n)), so there is a complexity gap there. https://cacm.acm.org/research/program-correctness-through-self-certification/
Умер раскрывший систему прослушки в Белом доме помощник Никсона02:50