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Linear-time-hard problems wanted

  1. Jan 29, 2014 #1
    Can I have a list of problems suspected of not having linear-time solutions? Like multiplication and sorting.
     
  2. jcsd
  3. Jan 31, 2014 #2
  4. Jan 31, 2014 #3
    I meant a poly-time problem.
     
  5. Jan 31, 2014 #4
    Fast Fourier transform (2d or 3d).
    Most trigonometric functions to any specified precision.
    Finding the first "n" primes.
    Defragmenting a disk with "n" fragments.

    Technically, counting to "n" because eventually you would need longer and longer word-lengths.
     
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