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00:00:00 – 00:07:02
The video discusses the 2021 AP Computer Science A FRQ 1a, focusing on creating a class with a secret word and implementing the 'score guess' method. The instructor emphasizes understanding question requirements and suggests using 'result' to store the score. There is a discussion on looping over a secret word to count guess occurrences correctly, ensuring no double counting. The importance of checking if the guess is at the beginning of the substring is highlighted. The video also covers taking substrings one letter at a time, counting them, and identifying errors in the code involving numerical values. Overall, the video provides insights into coding techniques, problem-solving strategies, and errors to watch out for in programming tasks like FRQ 2021.
00:00:00
In this part of the video, the instructor discusses the 2021 AP Computer Science A FRQ 1a. The task involves creating a class with a secret word and implementing the ‘score guess’ method. The ‘score guess’ method calculates the number of times a guess occurs in a substring of the secret word and returns a score based on the length of the guess. Examples with the words “mississippi” and “aaa bb” are provided to illustrate the scoring process. The instructor emphasizes the importance of understanding the question requirements and preconditions, suggesting using the word ‘result’ to store the score. A suggestion is made to calculate the result by multiplying the length of the guess squared for the return value.
00:03:00
In this segment of the video, the speaker discusses the process of looping over a secret word to find how many times a guess occurs within it. They emphasize the importance of ensuring the guess is only counted when it is at the beginning of a substring, preventing double counting. The speaker explains using the `index of` method to check if the guess is at the beginning of the substring before incrementing the count. They provide an example using the word “mississippi” to illustrate the process of iterating over the secret word to count occurrences of the guess correctly.
00:06:00
In this part of the video, the speaker is going through a code where they are taking substrings one letter at a time and counting them. They mention going through the process multiple times starting with ‘iss’ and then provide an example using numbers. The speaker realizes they should be using ‘result’ instead of ‘count’ and identifies errors with the numerical values. The code is not fully functional yet, and the speaker states it is related to work on ‘b.’ This segment pertains to FRQ 2021.