What is meant by Big O notation?

Related questions

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3. What is Dijkstra algorithm in data structure?
4. Why is searching algorithm needed?
5. What is asymptotic notation in algorithms?
6. Which is best searching technique?
7. How many searching algorithms are there?
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Tags

1. #which
2. #usually
3. #measure
4. #problem
5. #execution
6. #algorithm
7. #number
8. #notation
9. #memory
10. #items
11. #theoretical
12. #definition
13. #given
14. #needed