human
Minimum steps to delete a string by deleting substring comprising of same characters | Function to return the minimum number of delete operations.
When a single character is deleted.
When a group of consecutive characters are deleted if any of them matches.
When both the characters are same then delete the letters in between them.
Memoize.
Driver code"
Solution in Python:

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Give me a code to minimum steps to delete a string by deleting substring comprising of same characters and the other steps required?
assistant
#Here is code to minimum steps to delete a string by deleting substring comprising of same characters and the other steps required.
 def findMinimumDeletion ( l , r , dp , s ) :
	if l > r :
		return 0
	if l == r :
		return 1
	if dp [ l ] [ r ] != - 1 :
		return dp [ l ] [ r ]
	res = 1 + findMinimumDeletion ( l + 1 , r , dp , s )
	for i in range ( l + 1 , r + 1 ) :
		if s [ l ] == s [ i ] :
			res = min ( res , findMinimumDeletion ( l + 1 , i - 1 , dp , s ) + findMinimumDeletion ( i , r , dp , s ) )
	dp [ l ] [ r ] = res
	return res
if __name__ == " _ _ main _ _ " :
	s = " abcddcba "
	n = len ( s )
	N = 10
	dp = [ [ - 1 for i in range ( N ) ] for j in range ( N ) ]
	print ( findMinimumDeletion ( 0 , n - 1 , dp , s ) )