human
Minimum pairs required to be removed such that the array does not contain any pair with sum K | Function to find the maximum count of pairs required to be removed such that no pairs exist whose sum equal to K.
Stores maximum count of pairs required to be removed such that no pairs exist whose sum equal to K.
Base Case.
Sort the array.
Stores index of left pointer.
Stores index of right pointer.
Stores sum of left and right pointer.
If s equal to k.
Update cntPairs.
Update left.
Update right.
If s > k.
Update right.
Update left.
Return the cntPairs.
Driver Code.
Function call"
How can the above be solved in Python?
assistant
#Here is code to minimum pairs required to be removed such that the array does not contain any pair with sum K and the other steps required.
 def maxcntPairsSumKRemoved ( arr , k ) :
	cntPairs = 0
	if not arr or len ( arr ) == 1 :
		return cntPairs
	arr . sort ( )
	left = 0
	right = len ( arr ) - 1
	while left < right :
		s = arr [ left ] + arr [ right ]
		if s == k :
			cntPairs += 1
			left += 1
			right -= 1
		elif s > k :
			right -= 1
		else :
			left += 1
	return cntPairs
if __name__ == " _ _ main _ _ " :
	arr = [ 1 , 2 , 3 , 4 ]
	K = 5
	print ( maxcntPairsSumKRemoved ( arr , K ) )