What is the purpose of 'Constraints' in the exercises?

general
1

My initial view of the constraints was that they were extra requirements which your implementation should accommodate for, other views I have heard are they are for information purposes only so that your implementation does not handle unnecessary test cases.

I would have thought implementing these in the code handles the latter in the above. Any thoughts?

2

This is correct. You may not find that to be true for very easy problems. But you will reach a point where the constraints stop you from a bruteforce approach, for example.

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