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

Given a dictionary, find whether a given word can be formed by combining two words from the dictionary.


**Constraints:**


* $0 \leq$ `dictionary` $\leq 10^3$
* $1 \leq$ `dictionary[i]` $\leq 10^2$
* $1 \leq$ `word` $\leq 10^2$
* `word` and `words[i]` consist of lowercase English letters




# Examples

Try to solve the Word Formation From a Dictionary Using Trie problem.

Challenge 4: Word Formation From a Vector Using Trie

Statement