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Python | Cropped list Minimum

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  • Last Updated : 27 Feb, 2020

Sometimes, we require to shrink a list by deletion of its certain elements. One of the methods that is employed to perform this particular task is front and rear element deletion and we also desire to find minimum of this list. It is a good utility whose solution can be useful to have. Let’s discuss certain ways in which this can be performed.

Method #1 : Using list slicing + del operator + min()
The del operator can be clubbed with the slicing action to delete the front and rear elements from a list to obtain a cropped version of list. The task of finding minimum is found using min().




# Python3 code to demonstrate 
# Cropped list Minimum
# using del operator + list slicing + min()
  
# initializing list 
test_list = [2, 3, 5, 7, 9, 10, 8, 6]
  
# printing original list
print ("The original list is : " + str(test_list))
  
# initializing K 
K = 2
  
# using del operator + list slicing + min()
# Cropped list Minimum
del test_list[-K:], test_list[:K]
res = min(test_list)
  
# printing result 
print ("The cropped list minimum is : " + str(res))
Output :
The original list is : [2, 3, 5, 7, 9, 10, 8, 6]
The cropped list minimum is : 5

 

Method #2 : Using list slicing + min()
Above method can be modified and the use of del operator can be omitted to achieve this particular task. We can slice a list in a way that specific number of elements are removed from the list. The task of finding minimum is found using min().




# Python3 code to demonstrate 
# Cropped list Minimum
# using list slicing + min()
  
# initializing list 
test_list = [2, 3, 5, 7, 9, 10, 8, 6]
  
# printing original list
print ("The original list is : " + str(test_list))
  
# initializing K 
K = 2
  
# using list slicing + min()
# front and rear deletion 
res = min(test_list[K : -K])
  
# printing result 
print ("The cropped list minimum is : " + str(res))
Output :
The original list is : [2, 3, 5, 7, 9, 10, 8, 6]
The cropped list minimum is : 5

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