AI Features

Solution: Add Strings

Let's solve the Add Strings problem using the Math and Geometry pattern.

Statement

Given two non-negative integers, num1 and num2, represented as strings, return the sum of num1 and num2 as a string.

You must not use any built-in library for handling large integers (such as BigInteger) or directly convert the inputs to integers.

Constraints:

  • 11 \leq num1.length, num2.length ...