Learn and practice the Bitwise Manipulation, Sliding Window, and Union Find patterns to solve coding interview problems.

Educative-99 in Python: Accelerate Your Coding Interview Prep

Each of the patterns in this module exemplifies the power of dissecting a problem in detail and figuring out the least expensive operations required to solve it. In the Bitwise Manipulation pattern, we’ll learn to leverage the power of bit-level operators to deliver more efficient solutions. With the Sliding Window pattern, we’ll gain practice in various techniques to ensure that a solution that seems to require nested loops actually executes in linear time. Using the Union Find pattern, we’ll learn to solve a diverse set of problems using the disjoint-set data structure.

Elegant by Design

# Statement
Create a method, `encode`, that converts an array of strings into a single string and then sends it over the network. Create another method, `decode`, that takes the encoded string and converts it back into the original array of strings.

**Constraints:**
- $1 \leq$ `strings.length` $\leq 100$
- $0 \leq$ `strings[i].length` $\leq 100$
- `strings[i]` consist of any possible combinations of characters from 256 valid ASCII characters.

# Examples

Try to solve the Encode and Decode Strings problem.