You are currently viewing C++ STL Algorithms [Practice Test]

C++ STL Algorithms [Practice Test]

Practice tests with realistic uses cases to help you bake the C++ algorithms in your muscle memory.

What you’ll learn

  • Mapping real life usecases to builtin C++ algorithms
  • Advantage of using algorithms to improve code readability and predictable behavior
  • C++ algorithms library exposure from a practical perspective with relatable examples
  • A method to translate problems into algorithms and use the C++ language fully before reinventing an existing language feature due to lack of awareness.

Course content

20 questions


  • Basic programming ability with C++ is necessary
  • Ability to read the sample codes and write sample snippets to test code are necessary
  • Willingness to test sample codes with dummy data independently
  • Readiness to appreciate the possbilities of solving problems in more than one way.
  • Open minded to understand the need for standarization beyond syntax.
  • Willing to appreciate the built in features of C++ from production perspective instead of interview coding perspective.
  • Readiness to follow up the references and apply in daily engnieering tasks to build robust and modern C++ code.


The emphasis on learning C++ from an interview perspective leads to a reinventing wheel syndrome amongst developers. The container library usage has become a norm thanks to C++11. But using the algorithms library remains a challenge.


  • Assist you in becoming self sufficient as a C++ programmer.

  • Convince you about thinking algorithms first.

  • Present enough realistic examples for you to get the prototyping habit in muscle memory.

  • No take up months of your time to explain something you can learn and use in matter of hours!


  • Since interviews ask for search and sort algorithms, most developers believe they always have to implement them from scratch, even in production! 

  • The reinvention may leads to bugs.

  • Every time a new developer has to read the code, they need to reinterpret the algorithm from scratch.

  • Without up to date comments and documentation the code can easily be misinterpreted

  • A reinvented algorithm cannot benefit from the upgrades to the language. The ranges library is availble but homegrown implementations cannot benefit from it without significant engineering efforts.

  • Testing overage with corner cases of homegrown reimplementations is hard to maintain.

How to use the course?

  • Every question presents a use case.

  • Read the options and try to create minimal dummy data to test with.

  • Plugin all options and verify if your selected option works.

  • Choose the answer.

  • Read the “Review Questions” section at the end of each practice test to get more information and references.

Who this course is for:

  • Beginner Developers who started using C++ recently
  • Students who are learning C++
  • Intermediate developers diving deeper into C++ facilities.
  • Intermediate developers looking to modernize and standardize their C++ codebase.

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