Data Structures and Algorithms The Complete Masterclass - Detect Capital

The video tutorial explains how to solve the 'Detect Capital' problem, which involves checking if a word uses capital letters correctly. It outlines three conditions for proper capitalization: all letters capital, all letters lowercase, or only the first letter capitalized. The tutorial discusses different approaches to solve the problem, including using regular expressions and pattern matching. It provides a detailed Python implementation and explores optimization techniques. Finally, it presents a more concise Pythonic solution using built-in methods.

What is the main objective of the 'Detect Capital' problem?

• To check if a word is a palindrome.

• To verify if a word uses capital letters correctly.

• To count the number of vowels in a word.

• To determine the length of a word.

Which of the following is NOT a condition for correct capital usage?

• Only the first letter is capital.

• All letters are capital.

• Only the last letter is capital.

• All letters are small.

What was the initial approach considered for solving the problem?

• Using a dictionary to store words.

• Applying regular expressions.

• Using a stack data structure.

• Implementing a binary search.

In the pattern matching approach, what does a count of zero uppercase letters indicate?

• All letters are lowercase.

• The first letter is uppercase.

• The word is empty.

• All letters are uppercase.

What is the purpose of the loop in the Python implementation?

• To find the longest substring.

• To sort the letters alphabetically.

• To count the number of uppercase letters.

• To reverse the word.

What is the time complexity of the solution discussed?

• O(log N)

• O(1)

• O(N^2)

• O(N)

Which built-in Python method can be used to check if all characters in a word are uppercase?

• isdigit()

• islower()

• isupper()

• isalpha()

What is the space complexity of the solution?

• O(N^2)

• O(1)

• O(N)

• O(log N)

In the Pythonic solution, what is checked after confirming the first letter is uppercase?

• If the word contains numbers.

• If the word is longer than 10 characters.

• If the remaining letters are lowercase.

• If the word is a palindrome.

Why might an interviewer ask you to avoid using built-in methods?

• To evaluate your understanding of algorithmic logic.

• To check your ability to use online resources.

• To test your knowledge of Python syntax.

• To see if you can write code in another language.