# Add Binary Strings InterviewBit Solution

Problem: Add Binary Strings

## Problem Description:

Given two binary strings, return their sum (also a binary string).

### Example:

```
a = "100" -> 4 in decimal
b = "11" -> 3 in decimal
Return a + b = “111” -> 7 in decimal
```

## Solution Approach:

How will you add two binary numbers on paper? Just try implementing that approach.

## Time Complexity:

O(N), where N is the size of input string.

## Comments