Practice code. Learn by doing.
Algorithm and SQL challenges that run in your browser, with remote runners and AI hints when you need them.
Code · medium
Packing for a Trip
Optimize the items to pack for a trip based on their utility and weight.
Dynamic ProgrammingKnapsack
Code · medium
Remove Duplicates from Sorted Linked List
Given the head of a sorted linked list, remove all duplicates so that each element appears only once. Return the modified linked list
Linked List
Code · medium
Generate Prime Numbers
Efficient Techniques for Finding Prime Numbers
MathematicsNumber Theory
SQL · medium
Top Scorers: Identify High-Achieving Students
Retrieve details of students scoring 85 or more in any subject, ranked by their grades in descending order.
whereorder by