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Understanding a Python List | Splitting an array three-way around a given range

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Examples:

 Input: arr = [1, 14, 5, 20, 4, 2, 54, 20, 87, 98, 3, 1, 32] lowVal = 14, highVal = 20 Output: arr = [1, 5, 4, 2, 3, 1, 14, 20, 20, 54, 87, 98, 32] Input: arr = [1, 14, 5, 20, 4, 2, 54, 20, 87, 98, 3, 1, 32] lowVal = 20, highVal = 20 Output: arr = [1, 14, 5, 4, 2, 3, 1, 20, 20, 54, 87, 98, 32] 

We have a solution to this problem, please refer to See Partitioning an Array Three Way by Range We can quickly fix this problem in Python using

# Function for three-way splitting
# array around the given range

 

def threeWay ( input , lowVal, highVal):

 
# separate three-part input list

  first = [num for num in input if num "lowVal]

second = [num for num in input if (num" = lowVal and num " = highVal)]

third = [num for num  in input if num" highVal]

 
# combine all three parts

  print (first + second + third)

  
# Driver program

if __ name__ = = "__ main __" :

input = [ 1 , 14 , 5 , 20 , 4 , 2 , 54 , 20 , 87 , 98 , 3 , 1 , 32 ]

  lowVal = 14

highVal = 20

  threeWay ( input , lowVal, highVal)

Output:

 [1, 5, 4, 2, 3, 1, 14, 20, 20, 54, 87, 98, 32] 

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