Solve problems that are commonly asked in C++ coding interviews related to common data structures.

Ace the C++ Coding Interview

Data structures are among the fundamentals of computer science and are often a core decision in developing efficient programs. They are categorized as a vital benchmark of computer science knowledge when it comes to industry interviews. This module contains a detailed review of common data structures in C++. We'll also become well-equipped with different data structures by implementing them.
By the end of this module, we'll have expertise in solving problems in data structures.

Data Structures

# Statement

Design a queue data structure using only two stacks and implement the following functions:

- `enqueue(int x)`: Inserts a value to the back of the queue.
- `dequeue()`: Removes and returns the value from the front of the queue.

**Constraints:**


* $-10^5 \leq$ `x` $\leq 10^5$


# Examples




Try to solve the Implement Queue Using Stacks problem.

Challenge 4: Implement a Queue Using Stacks

Statement