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TheChetan

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TheChetan
Sep 11th, 2020 (edited)
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  1. 1. Given a staircase of n steps. You can climb in steps of 1, 2 and 3.
  2. In how many ways can you climb the staircase?
  3.  
  4. Ex:
  5. For 4 steps:
  6. 1+1+1+1
  7. 1+1+2
  8. 1+2+1
  9. 2+1+1
  10. 1+3
  11. 3+1
  12. 2+2
  13. So answer: 7
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