Tips and tricks

How do you solve corner test cases?

How do you solve corner test cases?

Check manually for corner cases….Stress Testing:

  1. Generate random input (click here to know how)
  2. Store output of brute force and optimal solution.
  3. If the two outputs are (equal) than print correct.
  4. Else print the input and break the loop.

How do I set up competitive companion?

Competitive Programming Helper (cph)

  1. Install cph in VS Code and open any folder.
  2. Install competitive companion in your browser.
  3. Use Companion by pressing the green plus (+) circle from the browser toolbar when visiting any problem page.
  4. The file opens in VS Code with testcases preloaded. Press Ctrl+Alt+B to run them.

How do you make a corner case?

How to check for corner cases?

  1. Read the question atleast 3 times thoroughly.
  2. Create your own test cases.
  3. Use common sense to check for corner cases.
  4. In case of debugging, use print statements to print our arrays, or whatever data structure you are using after each step.
  5. Check for code thoroughly…
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What are the test case design techniques?

Test Case Design Technique

  • Boundary Value Analysis (BVA)
  • Equivalence Partitioning (EP)
  • Decision Table Testing.
  • State Transition Diagrams.
  • Use Case Testing.

How do you create a test case in C++?

Generating Test Cases (generate() and generate_n() in C++)

  1. generate() The generate functions assigns random values provided by calling the generator function ‘gen’ to the elements in the range [begin, end).
  2. generate_n()

How can I improve the size of my test cases?

Generate small tests for faster and easier debugging especially for trivial solution. make parameters to easily tweak test size. Do not loose generality and check for special cases. 1 Stress test after manual test. 3 Start with very small test sizes.

How to get better at competitive programming?

Now, Let us find a better approach to Competitive Programming. Please note: One should read the proper Input and Output format because most of the beginners make mistakes of having extra print statements in the output. So please be careful about the output format. Example – “Please Enter Next Number :” and “Output is : .

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How do I solve the WA problem in C++?

Wrong Answer : Whenever you encounter WA, write a brute force code & make sure that it is perfect. Now generate test cases using random function in C++. Run your code on these test cases and match the output. Now think of the corner cases that will help you to find the problem in your algorithm.

What is the most encountered problem in competitive programming?

Now, Let us find a better approach to Competitive Programming. Please note: Run Time Error: It is the one of the most encountered problem by the beginners. The main reason could be : Segmentation Fault : It is the illegal accessing of memory address.