Here are some important topics you should focus on:

1️⃣ Arrays 📈: Arrays are a fundamental data structure that stores a collection of elements of the same type. Understanding how to use and manipulate arrays is essential for any programmer.

2️⃣ Linked Lists 🔗: Linked lists are another basic data structure that consist of a series of nodes linked together. They are commonly used in computer science and are essential for building more complex data structures.

3️⃣ Stacks and Queues 🆕: Stacks and queues are abstract data types that allow you to add or remove elements in a specific order. They have various applications, including in algorithm design, operating systems, and computer networks.

4️⃣ Trees 🌳: Trees are hierarchical data structures that consist of nodes connected by edges. They are used in many applications, such as in file systems, compilers, and databases.

5️⃣ Graphs 🌐: Graphs are a non-linear data structure that consist of nodes connected by edges. They are used in many applications, such as social networks, transportation networks, and recommendation systems.

Remember, mastering data structures is a key step in becoming a proficient programmer.

Keep learning and practicing! 🌟👨‍💻

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