Railway challenges

Practice problem statements with input format, output format, constraints and solutions.

beginner

Railway overview challenge

Build a small solution that uses Railway overview in Railway and handles one normal case plus one edge case.

Input format

Use a short text value, array, query, or sample object depending on the topic.

Output format

Print, render, or return the processed result in a readable format.

Constraints

  • Keep the solution under 60 lines.
  • Use descriptive names.
  • Do not depend on hidden external services.

Starter code

const concept = "Railway overview";
const task = { input: "sample", goal: "ship a useful feature" };
console.log(concept, task.goal);

Test cases

  • basic sample - valid processed result
  • empty or small sample - safe fallback result

Hint

Focus on the core railway overview pattern before polishing the final output.

Solution

const concept = "Railway overview solution";
const task = { input: "sample", goal: "ship a useful feature" };
console.log(concept, task.goal);
beginner

Railway setup challenge

Build a small solution that uses Railway setup in Railway and handles one normal case plus one edge case.

Input format

Use a short text value, array, query, or sample object depending on the topic.

Output format

Print, render, or return the processed result in a readable format.

Constraints

  • Keep the solution under 60 lines.
  • Use descriptive names.
  • Do not depend on hidden external services.

Starter code

const concept = "Railway setup";
const task = { input: "sample", goal: "ship a useful feature" };
console.log(concept, task.goal);

Test cases

  • basic sample - valid processed result
  • empty or small sample - safe fallback result

Hint

Focus on the core railway setup pattern before polishing the final output.

Solution

const concept = "Railway setup solution";
const task = { input: "sample", goal: "ship a useful feature" };
console.log(concept, task.goal);