practice-problems

Adding New Problems

From repo root, run:

python3 generate_problem.py "problem_name" --source "leetcode" --difficulty "easy"

Testing Automation

This repo uses GitHub Actions to automatically test solutions in Python, Java, C, C++.

How to Run Tests

1. Manually trigger tests:

   • Via GitHub UI:
     1. Go to Actions tab
     2. Select "Test Solutions" workflow
     3. Click "Run workflow"
   • Via CLI (requires GitHub CLI):

     gh workflow run "Test Solutions"

2. What gets tested:

   • All solution files matching these patterns:
     • Python: **/*.py (except in test/ directories)
     • Java: **/*.java
     • C: **/*.c

How to Write Testable Solutions

For tests to work, each solution file must include executable code:

Python Example

# practice-problems/leetcode/two_sum.py
def two_sum(nums, target):
    # Your solution
    return [0, 1]  # Example

if __name__ == "__main__":
    assert two_sum([2,7,11,15], 9) == [0, 1]  # Test case
    print("✓ Test passed")

Java Example

// practice-problems/leetcode/TwoSum.java
public class TwoSum {
    public static void main(String[] args) {
        int[] result = twoSum(new int[]{2,7,11,15}, 9);
        assert result[0] == 0 && result[1] == 1;
        System.out.println("✓ Test passed");
    }
    
    public static int[] twoSum(int[] nums, int target) {
        return new int[]{0, 1};  // Example
    }
}

C Example

// practice-problems/leetcode/two_sum.c
#include <stdio.h>
#include <assert.h>

int* twoSum(int* nums, int numsSize, int target) {
    static int result[2] = {0, 1};  // Example
    return result;
}

int main() {
    int nums[] = {2,7,11,15};
    int* result = twoSum(nums, 4, 9);
    assert(result[0] == 0 && result[1] == 1);
    printf("✓ Test passed\n");
    return 0;
}