<ul><li>Data Structures: Linear data structures include arrays, linked lists, stacks, and queues. Non-linear data structures include trees and graphs. Hashing is used for fast data retrieval. Specialized data structures like tries and Bloom filters are used in advanced applications.</li><li>Algorithms: Key types of algorithms include searching, sorting, divide and conquer, dynamic programming, greedy algorithms, and backtracking. Complexity analysis measures time and space complexity.</li><li>Applications of DSA: DSA is used in database management, web development, artificial intelligence, and operating systems.</li><li>Importance of Learning DSA: Learning DSA improves efficiency, problem-solving skills, and enhances career opportunities in top tech companies.</li></ul>

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