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What does “O(1) access time” mean?

I have seen this term "O(1) access time" used to mean "quickly" but I don't understand what it means. The other term that I see with it in the same context is "O(n) access time". Could someone please explain in a simple way what these terms mean? ...
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Best practices for exception management in Java or C# [closed]

... answered Jan 3 '09 at 18:49 Brian RasmussenBrian Rasmussen 108k3333 gold badges205205 silver badges303303 bronze badges ...
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How to use the pass statement?

... | edited Aug 28 '18 at 23:58 theUtherSide 2,58833 gold badges2727 silver badges3232 bronze badges answ...
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How to fix bower ECMDERR

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What is the reason for performing a double fork when creating a daemon?

... BeanoBeano 6,22133 gold badges2121 silver badges2626 bronze badges ...
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Difference between del, remove and pop on lists

... 1423 The effects of the three different methods to remove an element from a list: remove removes the ...
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How to fix corrupted git repository?

... | edited Dec 30 '17 at 6:35 answered Oct 6 '17 at 11:18 ...
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Difference between malloc and calloc?

... 863 calloc() gives you a zero-initialized buffer, while malloc() leaves the memory uninitialized. F...
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Functional programming vs Object Oriented programming [closed]

...s. – Jacobs Data Solutions Mar 26 '13 at 16:08 56 In JavaScript, you can have all of the things. ...
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Converting a JS object to an array using jQuery

... 432 var myObj = { 1: [1, 2, 3], 2: [4, 5, 6] }; var array = $.map(myObj, function(value, i...