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C (Coding): Intermediate Level Algorithms Test

The C (Coding): Intermediate Level Algorithms Test evaluates a candidate's proficiency with intermediate-level algorithms and data structures using the C programming language. It includes scenario-based MCQs to assess knowledge of various algorithms and data structures along with coding questions to evaluate practical coding skills.

Covered skills:

  • Sorting Algorithms
  • Search Algorithms
  • Dynamic Programming
  • Graph Algorithms
  • Data Structures
  • Recursion
  • String Manipulation
  • Bit Manipulation
  • Memory Management
  • Complexity Analysis
  • Greedy Algorithms
  • Divide and Conquer
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About the C (Coding): Intermediate Level Algorithms Assessment Test


The C (Coding): Intermediate Level Algorithms Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

  • Demonstrate proficiency in implementing and optimizing various sorting algorithms in C
  • Exhibit skill in designing and applying efficient search algorithms for different data structures
  • Show competence in utilizing dynamic programming techniques to solve complex problems
  • Display understanding of graph algorithms and their applications in real-world scenarios
  • Showcase expertise in implementing and manipulating advanced data structures in C
  • Demonstrate mastery of recursive problem-solving techniques and their optimization
  • Exhibit proficiency in manipulating strings and implementing string-related algorithms
  • Show competence in bit manipulation techniques for optimizing code performance
  • Display understanding of memory management concepts and best practices in C
  • Showcase ability to analyze and optimize algorithm complexity for better performance
  • Demonstrate skill in applying greedy algorithms to solve optimization problems
  • Exhibit proficiency in implementing divide and conquer strategies for efficient problem-solving

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Non-googleable questions


We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

These are just a small sample from our library of 15,000+ questions. The actual questions on this C (Coding): Intermediate Level Algorithms Test will be non-googleable.

🧐 Question

Medium

Memory Allocation
Memory Management
Pointer Usage
Resource Handling
Solve
Check the following three C functions:
 image
Which among these will likely cause issues with pointers?

Medium

Pointers and Structs
Syntax
Pointers
Structs
Solve
What is the output of the following C code?
 image

Medium

Strings
Strings
String Manipulation
Pointer Arithmetic
C Programming
Solve
What is the output of the following C code?
 image
🧐 QuestionπŸ”§ Skill

Medium

Memory Allocation
Memory Management
Pointer Usage
Resource Handling

2 mins

C
Solve

Medium

Pointers and Structs
Syntax
Pointers
Structs

2 mins

C
Solve

Medium

Strings
Strings
String Manipulation
Pointer Arithmetic
C Programming

2 mins

C
Solve
🧐 QuestionπŸ”§ SkillπŸ’ͺ DifficultyβŒ› Time
Memory Allocation
Memory Management
Pointer Usage
Resource Handling
C
Medium2 mins
Solve
Pointers and Structs
Syntax
Pointers
Structs
C
Medium2 mins
Solve
Strings
Strings
String Manipulation
Pointer Arithmetic
C Programming
C
Medium2 mins
Solve
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Preview questions
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We evaluated several of their competitors and found Adaface to be the most compelling. Great library of questions that are designed to test for fit rather than memorization of algorithms.

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Why you should use Pre-employment C (Coding): Intermediate Level Algorithms Test?

The C (Coding): Intermediate Level Algorithms Test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

  • Implementing efficient sorting algorithms like QuickSort and MergeSort
  • Developing search algorithms such as binary search and linear search
  • Applying dynamic programming techniques to optimize solutions
  • Implementing basic graph algorithms like BFS and DFS
  • Utilizing appropriate data structures for efficient problem-solving
  • Writing recursive functions to solve complex problems
  • Manipulating strings and performing operations on character arrays
  • Applying bit manipulation techniques for optimization
  • Managing memory allocation and deallocation in C programs
  • Analyzing time and space complexity of algorithms

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the C (Coding): Intermediate Level Algorithms Test?

Sorting Algorithms: Sorting algorithms are fundamental techniques used to arrange data in a specific order. They are crucial for optimizing search operations and data processing. Efficient sorting can significantly impact the overall performance of complex algorithms and applications.

Search Algorithms: Search algorithms are methods for finding specific items within a dataset. They range from simple linear searches to complex tree-based algorithms. Mastery of search algorithms is essential for efficient data retrieval and problem-solving in various computational tasks.

Dynamic Programming: Dynamic programming is an optimization technique that solves complex problems by breaking them down into simpler subproblems. It's particularly useful for problems with overlapping subproblems and optimal substructure. This skill is crucial for developing efficient solutions to resource allocation and optimization problems.

Graph Algorithms: Graph algorithms are used to solve problems related to network structures. They are essential in various applications, from social network analysis to route planning. Understanding graph algorithms is crucial for tackling complex real-world problems that can be modeled as graphs.

Data Structures: Data structures are specialized formats for organizing and storing data. They provide efficient ways to access and modify information. Proficiency in data structures is fundamental for designing efficient algorithms and optimizing memory usage in software development.

Recursion: Recursion is a programming technique where a function calls itself to solve a problem. It's particularly useful for solving problems with a recursive nature, such as tree traversals or fractal generation. Mastering recursion allows developers to write elegant and concise solutions to complex problems.

String Manipulation: String manipulation involves operations performed on text data. It's a critical skill in text processing, pattern matching, and data parsing. Efficient string manipulation is essential in many applications, from text editors to data analysis tools.

Bit Manipulation: Bit manipulation involves direct operations on binary data at the bit level. It's used for optimizing storage, encryption, and low-level system programming. This skill is crucial for developing efficient algorithms in resource-constrained environments.

Memory Management: Memory management is the process of controlling and coordinating computer memory allocation. It's crucial for optimizing program performance and preventing memory leaks. Effective memory management is essential for developing robust and efficient software systems.

Complexity Analysis: Complexity analysis involves evaluating the efficiency of algorithms in terms of time and space requirements. It's essential for comparing algorithms and predicting their performance as input sizes grow. This skill is crucial for designing scalable and efficient software solutions.

Greedy Algorithms: Greedy algorithms make locally optimal choices at each step to find a global optimum. They are often used for optimization problems where a series of decisions must be made. Understanding greedy algorithms is important for solving problems efficiently in various domains, including scheduling and resource allocation.

Divide and Conquer: Divide and conquer is a problem-solving approach that breaks complex problems into smaller, manageable subproblems. It's used in many efficient algorithms, such as merge sort and quick sort. This technique is valuable for developing scalable solutions to large-scale computational problems.

Full list of covered topics

The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for C (Coding): Intermediate Level Algorithms Test to be based on.

Quicksort
Mergesort
Heapsort
Binary search
Linear search
Interpolation search
Fibonacci sequence
Knapsack problem
Longest subsequence
Dijkstra's algorithm
Bellman-Ford algorithm
Floyd-Warshall algorithm
Binary trees
AVL trees
Red-black trees
Hash tables
Linked lists
Stack implementation
Queue implementation
Heap implementation
Trie implementation
Recursion optimization
Tail recursion
String matching
String manipulation
Palindrome checking
Bitwise operators
Bit shifting
Malloc
Calloc
Realloc
Free
Memory leaks
Big O notation
Time complexity
Space complexity
Greedy algorithms
Huffman coding
Prim's algorithm
Kruskal's algorithm
Divide-and-conquer
Binary exponentiation
Strassen's algorithm
Karatsuba algorithm
Pointers
Dynamic memory
Struct padding
Function pointers
Callback functions
File I/O
Preprocessor directives

What roles can I use the C (Coding): Intermediate Level Algorithms Test for?

  • Software Developer
  • Backend Developer
  • Systems Programmer
  • Embedded Systems Engineer
  • Algorithm Engineer
  • Data Analyst
  • Research Scientist
  • DevOps Engineer
  • Machine Learning Engineer
  • Game Developer

How is the C (Coding): Intermediate Level Algorithms Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

  • Implementing advanced graph algorithms like Dijkstra's and Floyd-Warshall
  • Developing greedy algorithms for optimization problems
  • Applying divide and conquer strategies to solve complex problems
  • Implementing advanced data structures like AVL trees and hash tables
  • Optimizing code for performance and memory usage
  • Developing algorithms for pattern matching and string processing
  • Implementing advanced sorting algorithms like Heap Sort and Radix Sort
  • Applying dynamic programming to solve NP-hard problems
  • Developing algorithms for network flow and matching problems
  • Implementing parallel and concurrent algorithms in C

The coding question for experienced candidates will be of a higher difficulty level to evaluate more hands-on experience.

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Have questions about the C (Coding): Intermediate Level Algorithms Hiring Test?

What is C (Coding): Intermediate Level Algorithms Test?

The C (Coding): Intermediate Level Algorithms Test assesses candidates' skills in intermediate-level C programming and algorithm development. It is utilized by recruiters to evaluate job applicants' proficiency in sorting, search, dynamic programming, graph algorithms, and more.

Can I combine C (Coding) test with Data Structures questions?

Yes, recruiters can create a custom test that includes both C (Coding) and Data Structures questions. Refer to the Data Structures Test for more details on the Data Structures assessment.

What topics are covered in the C (Coding): Intermediate Level Algorithms Test?

The test covers a variety of topics including Sorting Algorithms, Search Algorithms, Dynamic Programming, Graph Algorithms, Data Structures, Recursion, String Manipulation, Bit Manipulation, Memory Management, Complexity Analysis, Greedy Algorithms, and Divide and Conquer techniques.

How to use C (Coding): Intermediate Level Algorithms Test in my hiring process?

Recruiters can utilize this test as a pre-screening tool to evaluate candidates early in the hiring process. Embed the assessment link in job postings or send emails to invite candidates.

Can I test C and C++ together in a test?

Yes, you can test both C and C++ skills in a single test. It is recommended to use our combo test, such as the C++ Online Test for a comprehensive evaluation.

What are the main coding tests?
Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test.

Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Non-googleable questions
  • IP proctoring
  • Screen proctoring
  • Web proctoring
  • Webcam proctoring
  • Plagiarism detection
  • Secure browser
  • Copy paste protection

Read more about the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

Yes, you can sign up for free and preview this test.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

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