An Introduction to Programming Concepts and OI-programming. …from abstract theory to dirty tricks…. Objectives Today. Introduction to the concept of “ Algorithms ” Introduction to complexity “ Philosophy ” of OI competitions “ OI-style ” programming. What is an Algorithm?.
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…from abstract theory to dirty tricks…
“It is science. You can derive them.”“It is art. We have no way to teach you!”
f(x) is in O(g(x))
if and only if
there exist numbers x0 and M such that
|f(x)| ≤ M |g(x)| for x > x0
|f(N)| < C|g(N)| for all N > N0