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Number of palindromic substrings in a string Test | Pre-employment assessment - Testlify
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Number of palindromic substrings in a string Test

Overview of Number of palindromic substrings in a string Test

The question will test the attendee's ability to manipulate strings, identify palindromes, and implement the rules specified in the problem. the attendee will need to be proficient in string manipulation functions like slicing and iterating over subs

Skills measured

  • Programming (Algorithms)

Available in

English

Type

Coding Test


Time

18 Mins


Level

Beginner


Questions

1

Use of Number of palindromic substrings in a string test

This question requires the attendee to write a function that takes in a string s and calculates a score based on the presence of palindromes of length 4 and 5 in the string. The function needs to check for palindromes that are continuous and non-circular, meaning they cannot wrap around the end of the string. The score is calculated by adding 5 to the score for each palindrome of length 4 and 10 for each palindrome of length 5.

Relevant for

  • C++ Developer
  • Flutter Developer
  • Full Stack Developer
  • Java Developer
  • JavaScript Developer
  • PHP Developer
  • Software Developer Engineer
  • Software Developer

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1

Programming (Algorithms)

The skill of programming algorithms covered in determining the number of palindromic substrings in a string is crucial for solving various problems efficiently. By understanding and implementing algorithms such as dynamic programming or using techniques like Manacher's algorithm, programmers can effectively count the number of palindromic substrings in a given string. This skill is important as it not only helps in solving specific problems related to palindromes but also enhances a programmer's problem-solving abilities and overall understanding of string manipulation and algorithmic techniques. Mastering this skill can improve a programmer's ability to tackle complex problems and optimize code performance.

The Number of palindromic substrings in a string test is created by a subject-matter expert

Testlify’s skill tests are designed by experienced SMEs (subject matter experts). We evaluate these experts based on specific metrics such as expertise, capability, and their market reputation. Prior to being published, each skill test is peer-reviewed by other experts and then calibrated based on insights derived from a significant number of test-takers who are well-versed in that skill area. Our inherent feedback systems and built-in algorithms enable our SMEs to refine our tests continually.

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