human
Write me a code to minimum number of coins needed to remove all the elements of the array based on given rules and the other steps required given the following:
Minimum number of coins needed to remove all the elements of the array based on given rules | Function to calculate minimum number of coins needed.
Consider the first element separately , add 1 to the total if it 's of type 1.
Iterate from the second element.
If the current element is of type 2 then any Player can remove the element.
Second pointer to reach end of type 1 elements.
Increment j until arr [ j ] is equal to 1 and j is not out of bounds.
Number of type 1 elements in a continious chunk.
From next iteration i pointer will start from index of j.
Return the minimum count of coins.
Driver Code"
How can the above be solved in Python?
assistant
#Here is code to minimum number of coins needed to remove all the elements of the array based on given rules and the other steps required.
 def minimumcoins ( arr , N ) :
	coins = 0
	j = 0
	if ( arr [ 0 ] == 1 ) :
		coins += 1
	for i in range ( 1 , N ) :
		if ( arr [ i ] == 2 ) :
			continue
		j = i
		while ( j < N and arr [ j ] == 1 ) :
			j += 1
		x = ( j - i )
		coins += x // 3
		i = j - 1
	return coins
N = 8
arr = [ 1 , 2 , 1 , 1 , 2 , 1 , 1 , 1 ]
print ( minimumcoins ( arr , N ) )