This week I learned about important data structures including linked lists, stacks, queues, graphs, and trees. The lessons on graphs helped me understand how to represent relationships between data and I saw the difference between unweighted and weighted graphs. Learning about trees gave me a clearer picture of how hierarchical data can be organized. I also started exploring algorithm analysis where I learned how to think about time and space efficiency when writing code. One of the highlights of the week was working on a Java program that checks if a string is a palindrome. This program gave me a chance to practice taking user input, cleaning the input by removing symbols and ignoring case, and using a loop to compare characters from both ends of the string. It tied together several concepts we learned including string handling and logical thinking. Overall this week helped me build a stronger understanding of both data structures and algorithm efficiency while applying those ideas in code.

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