human
Write me a code to minimize cost to convert all characters of a binary string to 0 s and the other steps required given the following:
Minimize cost to convert all characters of a binary string to 0 s | Function to get the minimum Cost to convert all characters of given string to 0 s.
Stores the range of indexes of characters that need to be flipped.
Stores the number of times current character is flipped.
Stores minimum cost to get the required string.
Traverse the given string.
Remove all value from pq whose value is less than i.
Update flip.
Get the current number.
If current character is flipped odd times.
If current character contains non - zero value.
Update flip.
Update cost.
Append R [ i ] into pq.
Driver code.
Function call"
Solution in Python:
assistant
#Here is code to minimize cost to convert all characters of a binary string to 0 s and the other steps required.
 def minCost ( s , R , C , N ) :
	ch = list ( s )
	pq = [ ]
	flip = 0
	cost = 0
	for i in range ( N ) :
		while ( len ( pq ) > 0 and pq [ 0 ] < i ) :
			pq . pop ( 0 ) ;
			flip -= 1
		cn = ord ( ch [ i ] ) - ord ( '0' )
		if ( flip % 2 == 1 ) :
			cn = 1 - cn
		if ( cn == 1 ) :
			flip += 1
			cost += C [ i ]
			pq . append ( R [ i ] )
	return cost
N = 4
s = "1010"
R = [ 1 , 2 , 2 , 3 ]
C = [ 3 , 1 , 2 , 3 ]
print ( minCost ( s , R , C , N ) )