human
Length of longest non | Function to find the longest non - decreasing subsequence with difference between adjacent elements exactly equal to 1.
Base case.
Sort the array in ascending order.
Stores the maximum length.
Traverse the array.
If difference between current pair of adjacent elements is 1 or 0.
Extend the current sequence Update len and max_len.
Otherwise , start a new subsequence.
Print the maximum length.
Driver Code.
Given array.
Size of the array.
Function call to find the longest subsequence"
How can the above be solved in Python?
assistant
#Here is code to length of longest non and the other steps required.
 def longestSequence ( arr , N ) :
	if ( N == 0 ) :
		print ( 0 ) ;
		return ;
	arr . sort ( ) ;
	maxLen = 1 ;
	len = 1 ;
	for i in range ( 1 , N ) :
		if ( arr [ i ] == arr [ i - 1 ] or arr [ i ] == arr [ i - 1 ] + 1 ) :
			len += 1 ;
			maxLen = max ( maxLen , len ) ;
		else :
			len = 1 ;
	print ( maxLen ) ;
if __name__ == ' _ _ main _ _ ' :
	arr = [ 8 , 5 , 4 , 8 , 4 ] ;
	N = len ( arr ) ;
	longestSequence ( arr , N ) ;