human
What is a code to length of largest subsequence consisting of a pair of alternating digits and the other steps required given the following:
Length of largest subsequence consisting of a pair of alternating digits | Function to find the length of the largest subsequence consisting of a pair of alternating digits.
Variable initialization.
Nested loops for iteration.
Check if i is not equal to j.
Initialize length as 0.
Iterate from 0 till the size of the string.
Increment length.
Increment length.
Update maxi.
Check if maxi is not equal to 1 the print otherwise pr0.
Driver Code.
Given string.
Function call"
How can the above be solved in Python?
assistant
#Here is code to length of largest subsequence consisting of a pair of alternating digits and the other steps required.
 def largestSubsequence ( s ) :
	maxi = 0
	for i in range ( 10 ) :
		for j in range ( 10 ) :
			if ( i != j ) :
				lenn = 0
				prev1 = chr ( j + ord ( '0' ) )
				for k in range ( len ( s ) ) :
					if ( s [ k ] == chr ( i + ord ( '0' ) ) and prev1 == chr ( j + ord ( '0' ) ) ) :
						prev1 = s [ k ]
						lenn += 1
					elif ( s [ k ] == chr ( j + ord ( '0' ) ) and prev1 == chr ( i + ord ( '0' ) ) ) :
						prev1 = s [ k ]
						lenn += 1
				maxi = max ( lenn , maxi )
	if ( maxi != 1 ) :
		print ( maxi )
	else :
		print ( 0 )
if __name__ == ' _ _ main _ _ ' :
	s = "1542745249842"
	largestSubsequence ( s )