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Coding Challenges

Code Challenge: Python Move Zeros

For this code challenge, you are given a list of integers as an input. Return a list with the same elements where all zeros are at the end of the array. The provided function works but is very slow on larger inputs. Can you make it faster? More resources We have made available these extra resources to improve your Python coding skills: Want to conduct interviews on this platform? Check out CoderPad : pick any interview question or create your own, then invite your candidate to a shared live-coding session on an IDE like this one. You even get 2 free interviews per month forever using this registration link !

Coding Challenges

Code Challenge: Python Graph Algorithm

A graph is an important data structure used in various technologies such as navigation systems, databases, etc. For this code challenge, a path search is attempted using a graph algorithm. However, the algorithm seems to be incorrect. Can you fix it? Give it a try in the sandbox below: More resources We have made available these extra resources to improve your Python coding skills: Want to conduct interviews on this platform?

Coding Challenges

Code Challenge: Python Image Rotation

In the sandbox below, the rotate_in_place function is supposed to rotate a square matrix clockwise, but it’s not behaving as expected. Can you take a look? More resources We have made available these extra resources to improve your Python coding skills: Want to conduct interviews on this platform? Check out CoderPad : pick any interview question or create your own, then invite your candidate to a shared live-coding session on an IDE like this one. You even get 2 free interviews per month forever using this registration link !

Coding Challenges

Code Challenge: SQL Challenge

SQL is the primary language for interacting with relational databases. In this code challenge, your SQL knowledge is put to a test. Please see the interview prompts written directly in the pad to proceed. More resources We have made available these extra resources to improve your SQL coding skills: Want to conduct interviews on this platform? Check out CoderPad : pick any interview question or create your own, then invite your candidate to a shared live-coding session on an IDE like this one. You even get 2 free interviews per month forever using this registration link !

Coding Challenges

Code Challenge: Python Nested Loops Optimization

For this code challenge, you’re to implement a function which finds four numbers within the provided list which have a sum equal to the target. An example is provided, but is too slow on larger test cases because it has too many nested loops. More resources We have made available these extra resources to improve your Python coding skills: Want to conduct interviews on this platform? Check out CoderPad : pick any interview question or create your own, then invite your candidate to a shared live-coding session on an IDE like this one. You even get 2 free interviews per month forever using this registration link !

Coding Challenges

Code Challenge: C++ Anagrams

Anagrams are words created from the rearrangement of another word. For this code challenge, you are to implement a function which takes a list of words as an argument and finds all anagrams within the list. Please check the sandbox for further instructions: Code challenge solution Verify your solution with the official solution in this sandbox . More resources We have made available these extra resources to sharpen your C++ coding skills:

Coding Challenges

Code Challenge: Java Algorithm Reverse Engineering

Reverse engineering is a process or method through which one attempts to understand through deductive reasoning how a previously made device, process, system, or piece of software accomplishes a task with very little insight into exactly how it does so. We found this mysterious Java code. Can you figure out what it does? Bonus points if you can evaluate its complexity! More resources We have made available these extra resources to sharpen your Java coding skills:

Coding Challenges

Code Challenge: Python Random List

In this tiny interview, the generate_random_list function works as expected, but it’s very slow on large test cases. Can you figure out what’s wrong and fix it without changing its statistical distribution? Your task for this code challenge is to improve the generate_random_list function in the sandbox below to run faster than 100ms for both tests. More resources We have made available these extra resources to improve your Python coding skills:

Development

Logging in Django

The most difficult part of fixing a problem is identifying it. This statement is exceptionally true when it comes to debugging. While running your application, you may encounter errors, that need to be identified to enable you to fix them, in an instance where it is a large project, it becomes more difficult to identify the cause of the error or what type of error it is. Logging provides a solution to this! Logging is an essential method for diagnosing problems or understanding an occurrence in your application.

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