human
Minimum replacements in a string to make adjacent characters unequal | Function which counts the minimum number of required operations.
n stores the length of the string s.
ans will store the required ans.
i is the current index in the string.
Move j until characters s [ i ] & s [ j ] are equal or the end of the string is reached.
diff stores the length of the substring such that all the characters are equal in it.
We need atleast diff / 2 operations for this substring.
Driver code"
How can the above be solved in Python?
 ... What is a code to minimum replacements in a string to make adjacent characters unequal and the other steps required?
assistant
#Here is code to minimum replacements in a string to make adjacent characters unequal and the other steps required.
 def count_minimum ( s ) :
	n = len ( s )
	ans = 0
	i = 0
	while i < n :
		j = i
		while j < n and ( s [ j ] == s [ i ] ) :
			j += 1
		diff = j - i
		ans += diff // 2
		i = j
	print ( ans )
if __name__ == " _ _ main _ _ " :
	str = " caaab "
	count_minimum ( str )