Computational complexity theory is part of the theory of computation dealing with the resources
required during computation to solve a given problem. The most common resources are time
(how many steps does it take to solve a problem) and space (how much memory does it take to
solve a problem).
In this theory, the class P consists of all those decision problems that can be solved on a
deterministic sequential machine in an amount of time that is polynomial in the size of the input;
the class NP consists of all those decision problems whose positive solutions can be verifi ed
in polynomial time given the ...
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