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 Order of growth of algorithms specified in Big O notation.
     
 ![Big O graphs](https://github.com/trekhleb/javascript-algorithms/blob/master/assets/big-o-graph.png)
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 Source: [Big O Cheat Sheet](http://bigocheatsheet.com/).
     
 Below is the list of some of the most used Big O notations and their performance comparisons against different sizes of the input data.