Computer Science CS50 Lecture Notes - Lecture 3: Search Algorithm, Linear Search, Big O Notation

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26 Mar 2023
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This week in cs50, students were provided with additional tools to solve problems in their code, including command line tools like help 50 for cryptic error messages, style. 50 for feedback on code stylization, and debug 50 for debugging. The concept of an array, which enables the storage of contiguous blocks of memory was also introduced. This simple feature of programming languages has the potential to unlock powerful features and can be used to revisit earlier learning objectives such as the search algorithm. A search algorithm is a methodical approach to finding a specific item within a larger set of data, and it has real-life applications, such as searching for phone numbers in a phone book. It is important to design a search algorithm efficiently, as the running time of the algorithm can impact its effectiveness. By using big o notation, computer scientists and mathematicians can effectively describe the running times of algorithms.

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