Leetcode: 1047. Remove All Adjacent Duplicates In String.

remove_duplicates.rb

# Leetcode: 1047. Remove All Adjacent Duplicates In String.
# https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string/submissions/
# Runtime: 72 ms, faster than 93.10% of Ruby online submissions for Remove All Adjacent Duplicates In String.
# Memory Usage: 12.3 MB, less than 33.33% of Ruby online submissions for Remove All Adjacent Duplicates In String.
# @param {String} s
# @return {String}
def remove_duplicates(s)
    a = s.gsub(/(.)\1/,'')
    while(a != s)
        s = a
        a = s.gsub(/(.)\1/,'')  
    end
    s
end