Coding Challenge Generator
Master your technical interview skills with our intelligent, 99.9% accurate coding problem generator. Practice algorithms, data structures, and system design.
Two Sum
Given an array of integers `nums` and an integer `target`, return indices of the two numbers such that they add up to target.
Input: nums = [2,7,11,15], target = 9
Output: [0,1]
Explanation: Because nums[0] + nums[1] == 9, we return [0, 1].
- 2 <= nums.length <= 10^4
- -10^9 <= nums[i] <= 10^9
How to Use This Coding Challenge Generator
Welcome to the ultimate Coding Challenge Generator, a free online tool designed to help developers, students, and job seekers prepare for technical interviews at top tier tech companies. Whether you are targeting FAANG (Facebook, Amazon, Apple, Netflix, Google) or practicing for a startup role, consistent practice is key.
Key Features
- Difficulty Filtering: Choose from Easy, Medium, or Hard problems to match your current skill level.
- Topic Selection: Focus your study on specific weak points like Dynamic Programming, Linked Lists, or Array manipulation.
- Real-world Constraints: Each problem comes with realistic input/output examples and constraint definitions to mimic a real interview environment.
- Responsive Design: Practice on your desktop, tablet, or mobile phone without any layout issues.
Why Practice Coding Challenges?
Algorithmic problem solving is the core of modern technical recruitment. By using a random generator, you simulate the unpredictability of a live interview. This forces you to adapt quickly, recognize patterns, and apply the correct data structures without prior preparation.
How to Start
- Select your desired Difficulty from the dropdown menu.
- Select a specific Topic if you want to drill down, or leave it as "Any" for a mixed bag.
- Click the Generate Challenge button.
- Read the problem statement, analyze the constraints, and attempt to solve it in your local IDE.
Tip: Try to solve "Easy" problems in under 15 minutes, "Medium" in 30 minutes, and "Hard" in 45 minutes to build speed and accuracy.