Given a string
text, you want to use the characters of
text to form as many instances of the word "balloon" as possible.
You can use each character in
text at most once. Return the maximum number of instances that can be formed.
Input: text = "nlaebolko" Output: 1
Input: text = "loonbalxballpoon" Output: 2
Input: text = "leetcode" Output: 0
1 <= text.length <= 104
textconsists of lower case English letters only.