New Problem: Flight of Stairs

You’re climbing a flight of 20 stairs. Each time you take a step, you can choose to cover either one or two stairs. How many different ways can you climb to the top?

Now generalize to n stairs.

In basketball, you can score 1, 2, or 3 points at a time. How many ways can you score n points?

Can you generalize this to an arbitrary list of possible steps/points to advance at a time?


One Response to “New Problem: Flight of Stairs”

  1. Answer: Flight Of Stairs « Arcsecond Says:

    […] Flight Of Stairs By Mark Eichenlaub I got this problem from Shelley Chang, who says it’s one of her […]

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