Knowing What to Track

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Which of the following problems can be solved using the Knowing What to Track pattern?

Finding the maximum value in an array
Checking if two strings are anagrams (correct)
Finding the sum of two arrays
Sorting an array in ascending order

What is the time complexity of the Knowing What to Track pattern?

O(1) (correct)
O(n)
O(log n)
O(n^2)

Which data structures can be used to store the frequency count of the given data in the Knowing What to Track pattern?

Linked lists
Hashmaps only
Arrays or variables (correct)
Arrays only

What is the key advantage of using hashmaps in the Knowing What to Track pattern?

Constant time search and retrieval of data (A) Signup and view all the answers

Which of the following problems cannot be solved using the Knowing What to Track pattern?

Finding the median of an array (B) Signup and view all the answers

What is the main benefit of the Knowing What to Track pattern?

Avoidance of high time complexity (A) Signup and view all the answers

Which of the following is an example of a problem that can be solved using the Knowing What to Track pattern?

Checking if an array contains duplicate elements (B) Signup and view all the answers

What is the purpose of the Knowing What to Track pattern?

To identify key numeric properties in data (B) Signup and view all the answers

Which of the following is a real-world application of the Knowing What to Track pattern?

Analyzing customer buying patterns (C) Signup and view all the answers

What is the time complexity of the search and retrieval operations in a hashmap?

O(1) (B) Signup and view all the answers

Which one of these problems can be solved using the 'knowing what to track' pattern?

Given a half-filled board, fill the empty cells to solve the Sudoku puzzle. (C) Signup and view all the answers

Which one of these problems cannot be solved using the 'knowing what to track' pattern?

Given a string, check if any of its permutations can form a valid palindrome. (B) Signup and view all the answers

Which of these problems falls under the 'knowing what to track' pattern?

Given a string, count the substrings that have all of the vowels. (C) Signup and view all the answers

Which of these problems does not fall under the 'knowing what to track' pattern?

Check if a given string is a valid palindrome. (A) Signup and view all the answers

Which problem requires the 'knowing what to track' pattern to solve efficiently?

Given a half-filled board, fill the empty cells to solve the Sudoku puzzle. (C) Signup and view all the answers

Which problem does not require the 'knowing what to track' pattern to solve efficiently?

Check if a given string is a valid palindrome. (A) Signup and view all the answers

Which problem falls under the 'knowing what to track' pattern and requires a True / False response?

Given a string, check if any of its permutations can form a valid palindrome. (C) Signup and view all the answers

Which problem falls under the 'knowing what to track' pattern and does not require a True / False response?

Given a string, count the substrings that have all of the vowels. (D) Signup and view all the answers

Which problem does not fall under the 'knowing what to track' pattern and requires a True / False response?

Check if a given string is a valid palindrome. (D) Signup and view all the answers

Which problem does not fall under the 'knowing what to track' pattern and does not require a True / False response?

Given a half-filled board, fill the empty cells to solve the Sudoku puzzle. (D) Signup and view all the answers

Which problem requires the 'knowing what to track' pattern and a True / False response?

Given a string, check if any of its permutations can form a valid palindrome. (D) Signup and view all the answers