Coderust: Hacking the Coding Interview/

...

/

Add Two Strings

Add Two Strings

Given two non-negative integers, represented as strings, return their sum as a string.

We'll cover the following...

Statement

Given two non-negative numbers as strings. Implement a function that takes these strings as input, performs the addition, and returns the output in the form of a string.

Example

We are given two non-negative integers, “11” and “123” represented as strings. The sum of the strings is “134”.

Sample input

num1 = "11", num2 = "123"

Expected output

"134"

Try it yourself

#include <iostream>
#include <string>
using namespace std;
string AddStrings(string num1, string num2) {
    // TODO - Write your code here
    return "";
}

Solution

We’ll use digit-by-digit addition to solve this problem because we cannot convert the strings to integers. The algorithm for decimal addition is given ...

Access this course and 1400+ top-rated courses and projects.