Are there non-constructive algorithm existence proofs?
Posted by jkff, at cstheory.stackexchange.com,
I remember I might have encountered references to problems that have been proven to be solvable with a particular complexity…
I remember I might have encountered references to problems that have been proven to be solvable with a particular complexity…
Consider the #P-complete problem of counting the number of vertex covers of a given graph $G = (V, E)$. I'd like to know if…