Solution: Add Strings
Understand how to add two string-represented non-negative integers without converting them to numeric types. This lesson guides you through simulating manual addition digit-by-digit, handling carries, and reversing the final result to get the correct sum. You'll learn the step-by-step algorithm to solve this common coding interview problem and analyze its time and space complexity effectively.
We'll cover the following...
We'll cover the following...
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:
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