It's a measure of how efficiently an algorithm works. It basically says the time taken is PROPORTIONAL to some function of n (the number of inputs). O(1) means it always takes the same amount of time no matter how much input you throw at it. O(n) means the time it takes to output grows linearly with respect to n. Same can apply to O(log(n)) and O(n^2).
Note that if you have a sum of different things, keep the one that grows the fastest and throw out everything else. O(n+1) becomes O(n), O(n^2 + n*log(n)) becomes O(n^2), and so on.
Another important thing to note is that we don't allow constant coefficients in Big O notation. We don't put O(3) or O(n^2/2). Those are supposed to be O(1) and O(n^2). It's only when the coefficient is related to n in some way, like in O(n*log(n)) for example, that we keep the coefficient. This makes sense when you realize that what Big O notation is saying is that the time taken is PROPORTIONAL to whatever's inside that big O.
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It's a measure of how efficiently an algorithm works. It basically says the time taken is PROPORTIONAL to some function of n (the number of inputs). O(1) means it always takes the same amount of time no matter how much input you throw at it. O(n) means the time it takes to output grows linearly with respect to n. Same can apply to O(log(n)) and O(n^2).
Note that if you have a sum of different things, keep the one that grows the fastest and throw out everything else. O(n+1) becomes O(n), O(n^2 + n*log(n)) becomes O(n^2), and so on.
Another important thing to note is that we don't allow constant coefficients in Big O notation. We don't put O(3) or O(n^2/2). Those are supposed to be O(1) and O(n^2). It's only when the coefficient is related to n in some way, like in O(n*log(n)) for example, that we keep the coefficient. This makes sense when you realize that what Big O notation is saying is that the time taken is PROPORTIONAL to whatever's inside that big O.
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After a few weeks, your circulatory system is altered and lung function is improved.57 (CIALIS)，男士壯陽的首選藥品！| 美國禮來Lilly出品、Surgical repair is the traditional method of treating congenital heart disease, after decades of development and progress, there are still a certain percentage of patients who will have more serious post-operative complications or even die, plus the need for blood transfusion, post-operative scarring and other disadvantages, many patients are unwilling to accept
Looking for a way to enjoy the 2021 . The Tokyo Olympics 2020 are over but the best games are not over yet. Above all, you can now watch live Olympic games and see Paralympic athletes win gold medals. Find out how to watch Paralympics live streaming online anywhere.
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