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  1. def isAlt(a):
  2.     if len(a)<=1:
  3.         return False
  4.     for i in range(1, len(a)+1):
  5.         if a[i]*a[i-1] > 0:
  6.             return False
  7.         return True
  8.  
  9.  
  10. def isGrow(a):
  11.     if len(a)<=1:
  12.         return False
  13.     for i in range(1, len(a)+1):
  14.         if a[i] < a[i-1]:
  15.             return False
  16.         return True
  17.  
  18. def isMulti(a):
  19.     q = a[1]/a[0]
  20.     if len(a)<=1:
  21.         return False
  22.     for i in range(2, len(a)):
  23.         if a[i] / a[i-1] != q:
  24.             return False
  25.     return True
  26.  
  27. def isAdd(a):
  28.     q = a[1]-a[0]
  29.     if len(a)<=1:
  30.         return False
  31.     for i in range(2, len(a)):
  32.         if a[i] - a[i-1] != q:
  33.             return False
  34.     return True
Success #stdin #stdout 0.05s 9676KB
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https://ideone.com/dV5HcL
language:
Python 3 (python  3.9.5)
created:
4 days ago
visibility:
public

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