human
Give me a code to maximum contiguous decreasing sequence obtained by removing any one element and the other steps required given the following:
Maximum contiguous decreasing sequence obtained by removing any one element | Function to find the maximum length.
Initialise maximum length to 1.
Initialise left [ ] to find the length of decreasing sequence from left to right.
Initialise right [ ] to find the length of decreasing sequence from right to left.
Initially store 1 at each index of left and right array.
Iterate over the array arr [ ] to store length of decreasing sequence that can be obtained at every index in the right array.
Store the length of longest continuous decreasing sequence in maximum.
Iterate over the array arr [ ] to store length of decreasing sequence that can be obtained at every index in the left array.
Check if we can obtain a longer decreasing sequence after removal of any element from the array arr [ ] with the help of left [ ] & right [ ].
Return maximum length of sequence.
Driver code.
Function calling"
How can the above be solved in Python?
assistant
#Here is code to maximum contiguous decreasing sequence obtained by removing any one element and the other steps required.
 def maxLength ( a , n ) :
	maximum = 1 ;
	left = [ 0 ] * n ;
	right = [ 0 ] * n ;
	for i in range ( n ) :
		left [ i ] = 1 ;
		right [ i ] = 1 ;
	for i in range ( n - 2 , - 1 , - 1 ) :
		if ( a [ i ] > a [ i + 1 ] ) :
			right [ i ] = right [ i + 1 ] + 1 ;
		maximum = max ( maximum , right [ i ] ) ;
	for i in range ( 1 , n ) :
		if ( a [ i ] < a [ i - 1 ] ) :
			left [ i ] = left [ i - 1 ] + 1 ;
	if ( n > 2 ) :
		for i in range ( 1 , n - 1 ) :
			if ( a [ i - 1 ] > a [ i + 1 ] ) :
				maximum = max ( maximum , left [ i - 1 ] + right [ i + 1 ] ) ;
	return maximum ;
if __name__ == " _ _ main _ _ " :
	arr = [ 8 , 7 , 3 , 5 , 2 , 9 ] ;
	n = len ( arr ) ;
	print ( maxLength ( arr , n ) ) ;