NP-complete problems are likely to be unsolvable in polynomial time (although no one proved it yet). My question is, has anybody proved that they are unsolvable in $O(n^d)$ for some concrete small $d$? Say, has anybody proved that it's impossible to solve subset sum in $O(n)$?
2026-03-26 19:05:12.1774551912
NP-complete impossible to solve in $O(n)$
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