April 2024
Intermediate to advanced
832 pages
29h 31m
English
Content preview from Design and Analysis of Algorithms
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476 Design and Analysis of Algorithms
a solution is correct (without worrying about how hard it might be to fi nd the solution). Problems in NP are
relatively easy—if only we could guess the right solution, we could then quickly test it. Note that NP does
not stand for “non-polynomial”, by present day defi nition, as was pointed out in Chapter 14. There are many
complexity classes that are much harder than NP.
PSPACE Problems that can be solved using a reasonable amount of memory (again defi ned formally as a
polynomial in the input size) without regard to how much time the solution takes.
EXPTIME Problems that can be solved in exponential time. This class contains most problems we are
likely to come across. This class is not all-inclusive; ...
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