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Oct 27th, 2016
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  1. A= [1,3,1,4,2,3,5,4]
  2.  
  3. def solution(X, A):
  4. checker=0
  5. final_val=pow(2,5)-1
  6. for x in range(len(A)):
  7. checker=checker| 1<<(A[x]-1)
  8.  
  9. if(checker==final_val):
  10. return x
  11. return -1
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