2nd October 2019

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# What is space and time complexity in data structure?

Space complexity of an algorithm can be defined as follows Total amount of computer memory required by an algorithm to complete its execution is called as space complexity of that algorithm. Generally, when a program is under execution it uses the computer memory for THREE reasons.

Also asked, what is space and time complexity?

Time complexity is a function describing the amount of time an algorithm takes in terms of the amount of input to the algorithm. Space complexity is a function describing the amount of memory (space) an algorithm takes in terms of the amount of input to the algorithm.

What does it mean to have O 1 space?

a space complexity of O(1) means that the space required by the algorithm to process data is constant; it does not grow with the size of the data on which the algorithm is operating.

What is auxiliary space complexity?

The term Space Complexity is misused for Auxiliary Space at many places. Space Complexity of an algorithm is total space taken by the algorithm with respect to the input size. Space complexity includes both Auxiliary space and space used by input.