C++ & Python Test

Q: What are the main coding tests available?

Key coding tests include: C++ Online Test Python Online Test Java Online Test JavaScript Online Test

The CPP Python Online Test uses scenario-based MCQs to evaluate candidates on their understanding of C++ and Python programming languages and their ability to use them for software development. The test assesses candidates on their knowledge of C++ and Python syntax, language features, and standard libraries, as well as their ability to write and debug code in both languages. It also evaluates their familiarity with object-oriented programming (OOP) concepts and principles, data structures and algorithms, and memory management in C++.

Covered skills:

C++ Fundamentals
Python Fundamentals
Data Types
Control Statements
Functions
Object-Oriented Programming
File Handling
Exception Handling
Data Structures
Algorithms
Database Integration

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About the C++ & Python Assessment Test

The C++ & Python 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:

Proficient in C++ fundamentals
Familiar with Python fundamentals
Solid understanding of data types
Ability to effectively use control statements
Experience with writing and using functions
Knowledge of object-oriented programming principles
Proficient in file handling operations
Ability to handle exceptions and errors
Understanding of data structures
Familiarity with algorithms
Experience with database integration

1200+ customers in 80 countries

Use Adaface tests trusted by recruitment teams globally. Adaface skill assessments measure on-the-job skills of candidates, providing employers with an accurate tool for screening potential hires.

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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++ & Python Test will be non-googleable.

🧐 Question
Medium ZeroDivisionError and IndexError Exceptions Exception Handling Error Handling	Solve
What will the following Python code output?
Medium Session File Handling Dictionary Csv Parsing Exception Handling In File Input/output	Solve
The function high_sess should compute the highest number of events per session of each user in the database by reading a comma-separated value input file of session data. The result should be returned from the function as a dictionary. The first column of each line in the input file is expected to contain the user’s name represented as a string. The second column is expected to contain an integer representing the events in a session. Here is an example input file: Tony,10 Stark,12 Black,25 Your program should ignore a non-conforming line like this one. Stark,3 Widow,6 Widow,14 The resulting return value for this file should be the following dictionary: { 'Stark':12, 'Black':25, 'Tony':10, 'Widow':14 } What should replace the CODE TO FILL line to complete the function?
Medium Max Code Arrays Code Analysis Algorithm Understanding	Solve
Below are code lines to create a Python function. Ignoring indentation, what lines should be used and in what order for the following function to be complete:
Medium Recursive Function Recursion Dictionary Lists	Solve
Consider the following Python code: In the above code, recursive_search is a function that takes a dictionary (data) and a target key (target) as arguments. It searches for the target key within the dictionary, which could potentially have nested dictionaries and lists as values, and returns the value associated with the target key. If the target key is not found, it returns None. nested_dict is a dictionary that contains multiple levels of nested dictionaries and lists. The recursive_search function is then called with nested_dict as the data and 'target_key' as the target. What will the output be after executing the above code?
Medium Stacking problem Stack Linkedlist	Solve
What does the below function ‘fun’ does? A: Sum of digits of the number passed to fun. B: Number of digits of the number passed to fun. C: 0 if the number passed to fun is divisible by 10. 1 otherwise. D: Sum of all digits number passed to fun except for the last digit.
Medium Overloading OOPs Code Analysis Logic Understanding	Solve
What will the following C++ code output?
Medium Exceptions Exceptions C++ Code Output Analysis Exception Handling	Solve
What will the following C++ code output?
Easy Namespaces Namespace Management C++ Syntax	Solve
What will the following C++ code output?
Medium Struct Class	Solve
What will the following C++ code output?
Easy Registration Queue Logic Queues Sorting By Custom Order	Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount. For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition. ⚠️⚠️⚠️ Note: - The first line of the input is the length of the array. The second line contains all the elements of the array. - The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function. - You need to "print" the final result (not return it) to pass the test cases. For the example discussed above, the input will be: 5 20 70 -40 30 -10 Your code needs to print the following to the standard output: 20 70 30 -40 -10
Medium Visitors Count Strings Logic String Parsing Character Counting	Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. Example: Input: WWMMWWCCC Expected Output: 4W3C2M Explanation: ‘W’ has the highest count, then ‘C’, then ‘M’. ⚠️⚠️⚠️ Note: - The input is already parsed and passed to a function. - You need to "print" the final result (not return it) to pass the test cases. - If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’. - If any of them have the same count, the output should follow this order - M, W, C.

	🧐 Question	🔧 Skill
	Medium ZeroDivisionError and IndexError Exceptions Exception Handling Error Handling	2 mins Python	Solve
What will the following Python code output?
	Medium Session File Handling Dictionary Csv Parsing Exception Handling In File Input/output	2 mins Python	Solve
The function high_sess should compute the highest number of events per session of each user in the database by reading a comma-separated value input file of session data. The result should be returned from the function as a dictionary. The first column of each line in the input file is expected to contain the user’s name represented as a string. The second column is expected to contain an integer representing the events in a session. Here is an example input file: Tony,10 Stark,12 Black,25 Your program should ignore a non-conforming line like this one. Stark,3 Widow,6 Widow,14 The resulting return value for this file should be the following dictionary: { 'Stark':12, 'Black':25, 'Tony':10, 'Widow':14 } What should replace the CODE TO FILL line to complete the function?
	Medium Max Code Arrays Code Analysis Algorithm Understanding	2 mins Python	Solve
Below are code lines to create a Python function. Ignoring indentation, what lines should be used and in what order for the following function to be complete:
	Medium Recursive Function Recursion Dictionary Lists	3 mins Python	Solve
Consider the following Python code: In the above code, recursive_search is a function that takes a dictionary (data) and a target key (target) as arguments. It searches for the target key within the dictionary, which could potentially have nested dictionaries and lists as values, and returns the value associated with the target key. If the target key is not found, it returns None. nested_dict is a dictionary that contains multiple levels of nested dictionaries and lists. The recursive_search function is then called with nested_dict as the data and 'target_key' as the target. What will the output be after executing the above code?
	Medium Stacking problem Stack Linkedlist	4 mins Python	Solve
What does the below function ‘fun’ does? A: Sum of digits of the number passed to fun. B: Number of digits of the number passed to fun. C: 0 if the number passed to fun is divisible by 10. 1 otherwise. D: Sum of all digits number passed to fun except for the last digit.
	Medium Overloading OOPs Code Analysis Logic Understanding	2 mins C++	Solve
What will the following C++ code output?
	Medium Exceptions Exceptions C++ Code Output Analysis Exception Handling	2 mins C++	Solve
What will the following C++ code output?
	Easy Namespaces Namespace Management C++ Syntax	2 mins C++	Solve
What will the following C++ code output?
	Medium Struct Class	2 mins C++	Solve
What will the following C++ code output?
	Easy Registration Queue Logic Queues Sorting By Custom Order	30 mins Coding	Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount. For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition. ⚠️⚠️⚠️ Note: - The first line of the input is the length of the array. The second line contains all the elements of the array. - The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function. - You need to "print" the final result (not return it) to pass the test cases. For the example discussed above, the input will be: 5 20 70 -40 30 -10 Your code needs to print the following to the standard output: 20 70 30 -40 -10
	Medium Visitors Count Strings Logic String Parsing Character Counting	30 mins Coding	Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. Example: Input: WWMMWWCCC Expected Output: 4W3C2M Explanation: ‘W’ has the highest count, then ‘C’, then ‘M’. ⚠️⚠️⚠️ Note: - The input is already parsed and passed to a function. - You need to "print" the final result (not return it) to pass the test cases. - If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’. - If any of them have the same count, the output should follow this order - M, W, C.

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	ZeroDivisionError and IndexError Exceptions Exception Handling Error Handling	Python	Medium	2 mins	Solve
What will the following Python code output?
	Session File Handling Dictionary Csv Parsing Exception Handling In File Input/output	Python	Medium	2 mins	Solve
The function high_sess should compute the highest number of events per session of each user in the database by reading a comma-separated value input file of session data. The result should be returned from the function as a dictionary. The first column of each line in the input file is expected to contain the user’s name represented as a string. The second column is expected to contain an integer representing the events in a session. Here is an example input file: Tony,10 Stark,12 Black,25 Your program should ignore a non-conforming line like this one. Stark,3 Widow,6 Widow,14 The resulting return value for this file should be the following dictionary: { 'Stark':12, 'Black':25, 'Tony':10, 'Widow':14 } What should replace the CODE TO FILL line to complete the function?
	Max Code Arrays Code Analysis Algorithm Understanding	Python	Medium	2 mins	Solve
Below are code lines to create a Python function. Ignoring indentation, what lines should be used and in what order for the following function to be complete:
	Recursive Function Recursion Dictionary Lists	Python	Medium	3 mins	Solve
Consider the following Python code: In the above code, recursive_search is a function that takes a dictionary (data) and a target key (target) as arguments. It searches for the target key within the dictionary, which could potentially have nested dictionaries and lists as values, and returns the value associated with the target key. If the target key is not found, it returns None. nested_dict is a dictionary that contains multiple levels of nested dictionaries and lists. The recursive_search function is then called with nested_dict as the data and 'target_key' as the target. What will the output be after executing the above code?
	Stacking problem Stack Linkedlist	Python	Medium	4 mins	Solve
What does the below function ‘fun’ does? A: Sum of digits of the number passed to fun. B: Number of digits of the number passed to fun. C: 0 if the number passed to fun is divisible by 10. 1 otherwise. D: Sum of all digits number passed to fun except for the last digit.
	Overloading OOPs Code Analysis Logic Understanding	C++	Medium	2 mins	Solve
What will the following C++ code output?
	Exceptions Exceptions C++ Code Output Analysis Exception Handling	C++	Medium	2 mins	Solve
What will the following C++ code output?
	Namespaces Namespace Management C++ Syntax	C++	Easy	2 mins	Solve
What will the following C++ code output?
	Struct Class	C++	Medium	2 mins	Solve
What will the following C++ code output?
	Registration Queue Logic Queues Sorting By Custom Order	Coding	Easy	30 mins	Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount. For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition. ⚠️⚠️⚠️ Note: - The first line of the input is the length of the array. The second line contains all the elements of the array. - The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function. - You need to "print" the final result (not return it) to pass the test cases. For the example discussed above, the input will be: 5 20 70 -40 30 -10 Your code needs to print the following to the standard output: 20 70 30 -40 -10
	Visitors Count Strings Logic String Parsing Character Counting	Coding	Medium	30 mins	Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. Example: Input: WWMMWWCCC Expected Output: 4W3C2M Explanation: ‘W’ has the highest count, then ‘C’, then ‘M’. ⚠️⚠️⚠️ Note: - The input is already parsed and passed to a function. - You need to "print" the final result (not return it) to pass the test cases. - If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’. - If any of them have the same count, the output should follow this order - M, W, C.

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Why you should use Pre-employment C++ & Python Test?

The C++ & Python 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:

Understanding and applying C++ fundamentals
Implementing Python fundamentals for code development
Manipulating data types in C++ and Python
Utilizing control statements efficiently
Creating and using functions in C++ and Python
Implementing Object-Oriented Programming concepts
Working with file handling in C++ and Python
Handling exceptions and errors effectively
Using various data structures in C++ and Python
Analyzing and implementing 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++ & Python Test?

C++ Fundamentals: C++ Fundamentals refers to the knowledge and understanding of the basic concepts and features of the C++ programming language. This includes topics such as variables, operators, control flow, loops, and functions. It is important to measure this skill in the test to assess the candidate's familiarity with the foundational principles of C++, as it forms the basis for more advanced programming concepts.

Python Fundamentals: Python Fundamentals involves having a good grasp of the fundamental concepts and syntax of the Python programming language. This includes concepts such as variables, data types, control statements, and functions specific to Python. It is crucial to measure this skill in the test as Python is widely used in various domains, and a strong understanding of its fundamentals is essential for effective coding in Python.

Data Types: Data Types in programming refer to the different categories of data that can be used in a program, such as integers, floats, strings, and booleans. Understanding data types is important as it helps programmers effectively manage and manipulate data throughout the program. This skill is measured in the test to evaluate the candidate's knowledge in handling different data types and their associated operations.

Control Statements: Control Statements are used to control the flow of execution in a program based on certain conditions. This includes statements such as if, else, and switch statements. Measuring this skill in the test allows recruiters to assess the candidate's ability to write logic and make decisions within a program based on specific conditions.

Functions: Functions in programming are blocks of code that perform a specific task. They allow code reuse, modularity, and improve overall program organization. Testing this skill helps determine the candidate's proficiency in creating and using functions, as well as understanding concepts such as parameters, return values, and scope.

Object-Oriented Programming: Object-Oriented Programming (OOP) is a programming paradigm that revolves around the creation and manipulation of objects. It involves concepts such as classes, objects, inheritance, and polymorphism. Assessing this skill in the test helps recruiters evaluate the candidate's knowledge and proficiency in leveraging OOP principles to design and implement efficient and scalable software solutions.

File Handling: File Handling refers to the ability to read from and write to files using programming languages. It involves concepts such as opening, closing, reading, and writing to files. Measuring this skill in the test is important as file handling is a common task in many programming scenarios, and the ability to work with files accurately and efficiently is essential for developing robust applications.

Exception Handling: Exception Handling is a mechanism in programming that allows for graceful handling of errors and exceptional situations. It involves using try-catch blocks to catch and handle exceptions. Evaluating this skill in the test helps recruiters assess the candidate's ability to anticipate and manage errors, ensuring that their programs can handle unexpected situations without crashing or producing incorrect outputs.

Data Structures: Data Structures refer to the ways in which data is organized, stored, and manipulated in a program. This includes structures such as arrays, lists, stacks, queues, and trees. Testing this skill allows recruiters to gauge the candidate's familiarity with different data structures and their associated algorithms, which are vital for efficient data management and manipulation in a wide range of programming scenarios.

Algorithms: Algorithms are step-by-step procedures or methods used to solve specific problems. They involve efficient and logically structured solutions to perform various operations. This skill is measured in the test to assess the candidate's knowledge and understanding of algorithm design and analysis, which are essential for optimizing program performance and solving complex computational problems.

Database Integration: Database Integration refers to the ability to interact with databases through programming languages. This includes tasks such as connecting to databases, executing queries, and retrieving or modifying data. Evaluating this skill in the test helps recruiters gauge the candidate's proficiency in integrating applications with databases, which is crucial for developing software solutions that require persistent data storage and retrieval.

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++ & Python Test to be based on.

C++ syntax

Input and output stream

Variables and data types

Conditionals

Loops

Functions and parameters

Classes and objects

Inheritance and polymorphism

File input/output

Exception handling

Arrays

Linked lists

Stacks and queues

Searching algorithms

Sorting algorithms

Recursion

Pointers

Memory management

Command line arguments

Templates

STL containers

STL algorithms

Regular expressions

Lambda functions

Multi-threading

Database queries

SQL integration

Database connectivity

Database transactions

Python syntax

Data types and variables

Strings and string manipulation

Lists and tuples

Dictionaries and sets

Conditionals and loops

Functions and modules

File handling

Exception handling

Object-oriented programming

Inheritance and polymorphism

File input/output

Working with JSON

Regular expressions

Virtual environments

Decorators

Generators

Recursion

Algorithms

Data structures

Database integration

SQL queries

Database connectivity

Database transactions

What roles can I use the C++ & Python Test for?

C++ Developer
Python Developer

How is the C++ & Python 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

Integrating databases with code development
Applying advanced concepts of C++
Implementing advanced concepts of Python
Designing and implementing complex data types
Optimizing code performance in C++ and Python
Working with multithreading and concurrency
Implementing secure coding practices
Debugging and troubleshooting complex issues
Performing code reviews and optimizations
Leading and coordinating development projects

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++ & Python Hiring Test?

What is C++ & Python Test - cpp-python-test?

The C++ & Python Test - cpp-python-test assesses candidates' fundamental knowledge of both C++ and Python programming languages. It's used by recruiters to evaluate skills in data structures, algorithms, OOP, file handling, exception handling, multithreading, and secure coding practices.

Can I combine the C++ & Python Test with Data Science questions?

Yes, recruiters can request a single custom test that includes multiple skills. For Data Science, you can check the Data Science Assessment Test for more details.

What kind of questions are used to evaluate senior candidates in the C++ & Python Test?

The test includes multiple-choice questions and coding challenges that cover advanced concepts like integrating databases with code development, optimizing code performance, working with multithreading and concurrency, and debugging complex issues. There are 5 MCQs for Python, 5 MCQs for C++, and 1 coding question.

How to use the C++ & Python Test in my hiring process?

Use this test as a pre-screening tool at the beginning of your recruitment process. Add a link to the assessment in your job post or directly invite candidates by email.

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

Yes, you can. This combination is recommended as it provides a holistic assessment of the candidate’s proficiency in both languages. Check out the C++ & Python Test.

What are the main coding tests available?

Key coding tests include:

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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Along with scorecards that report the performance of the candidate in detail, you also receive a comparative analysis against the company average and industry standards.

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