Add Binary

Try to solve the Add Binary problem.


Given two binary strings str1 and str2, return their sum as a binary string.


  • 11\leq str1.length , str2.length \leq 500500

  • str1 and str2 consist of 0 or 1 characters only.

  • Any string must not contain leading zeros except the string representing the binary form of 00.


Level up your interview prep. Join Educative to access 80+ hands-on prep courses.