00_ common time complexity

Under normal circumstances

Common time complexity: from small to big time

O (1) <O (log n) <O (n) <O (nlog n) <O (n-th power of 2) <O (n 3 th) <O (2n) <O (n!) <O (n power of n)

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Origin www.cnblogs.com/nichengshishaonian/p/11575568.html