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Python – Maximum element till K value

  • Last Updated : 29 Dec, 2019

One of the problem that is basically a subproblem for many complex problems, finding maximum number till a certain number in list in python, is commonly encountered and this particular article discusses possible solutions to this particular problem.

Method #1 : Naive method
The most common way this problem can be solved is using a loop and just max the occurrences of elements that are till given number K.




# Python 3 code to demonstrate 
# Maximum element till K value
# using naive method 
  
# initializing list
test_list = [1, 7, 5, 6, 3, 8]
  
# initializing k
k = 4
  
# printing list 
print ("The list : " + str(test_list))
  
# using naive method 
# Maximum element till K value
res = 0
for i in test_list :
    if i <= k :
        res = max(res, i)
  
# printing the intersection 
print ("The maximum number till K : " + str(res))
Output :
The list : [1, 7, 5, 6, 3, 8]
The maximum number till K : 3

 

Method #2 : Using list comprehension
This method achieves this task in a similar way, but in a more concise manner. List comprehension always lowers the lines of codes in the program even though runs a similar approach in the background.




# Python 3 code to demonstrate 
# Maximum element till K value
# using list comprehension
  
# initializing list
test_list = [1, 7, 5, 6, 3, 8]
  
# initializing k
k = 4
  
# printing list 
print ("The list : " + str(test_list))
  
# using list comprehension
# Maximum element till K value
res = max([i for i in test_list if i <= k])
  
# printing the intersection 
print ("The maximum number till K : " + str(res))
Output :
The list : [1, 7, 5, 6, 3, 8]
The maximum number till K : 3

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