human
Minimum Decrements on Subarrays required to reduce all Array elements to zero | Function to count the minimum number of subarrays that are required to be decremented by 1.
Base case.
Initializing ans to first element.
For A [ i ] > A [ i - 1 ] , operation ( A [ i ] - A [ i - 1 ] ) is required.
Return the count.
Driver Code"
How can the above be solved in Python?
 Give me a code to minimum Decrements on Subarrays required to reduce all Array elements to zero and the other steps required?
assistant
#Here is code to minimum Decrements on Subarrays required to reduce all Array elements to zero and the other steps required.
 def min_operations ( A ) :
	if len ( A ) == 0 :
		return 0
	ans = A [ 0 ]
	for i in range ( 1 , len ( A ) ) :
		if A [ i ] > A [ i - 1 ] :
			ans += A [ i ] - A [ i - 1 ]
	return ans
A = [ 1 , 2 , 3 , 2 , 1 ]
print ( min_operations ( A ) )