Problem of the Day #162
Exact Science - Problem of the Day - 162
pod-2025-162
Problem
Alex is climbing a staircase with 10 steps. With each move, he can go up either 1 step or 2 steps. In how many different ways can Alex reach the top of the staircase?When coming down the same staircase, Alex is allowed to jump over any number of steps — he may even jump directly from the top to the ground in one go.How many different ways can Alex jump down the staircase?
Solution
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