3: Compare strings
Compare two strings one and two, return true if they are equal. Both strings are typed into empty text editors. # means a backspace character.
Example 1
Input: one = abc#, two = abc##b
Output: true
Explanation: both strings become
ab
Example 2
Input: one = abc, two = a#bc
Output: false
Explanation:
onebecomesabc,twobecomesbc