Staircase using recursion |
LIFE CODING WITH JAVA
Staircase
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A child is running up a staircase with N steps, and can hop either 1 step, 2 steps or 3 steps at a time. Implement a method to count how many possible ways the child can run up to the stairs. You need to return number of possible ways W.
Sample Input 1 :
4
Sample Output 1 :
7
Sample Input 2 :
5
Sample Output 2 :
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