What is meant by the phrase “space complexity”?

1.  How many microprocessors it would take to run your code in less than one second
2.  How many lines of code are in your code file
3.  The amount of space taken up in memory as a function of the input size
4.  How many copies of the code file could fit in 1 GB of memory

Correct Answer:

•  The amount of space taken up in memory as a function of the input size