Archive for January 2010 - Page 1

  1. Combinations to Reach Nth Stair by moving up one step or two step at a time.

    The answer to this can be found out by induction. To reach the Nth Stair, we can reach by jumping one step from the (N - 1)th stair or jumping 2 steps from the (N-2)th chair. If we denote Number of Ways … read on

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