AlgoSolveoSmart Revision
Solved problems come back after 3, 7, 21 and 60 days, right before you'd forget them. Re-solve each one from scratch in the console. If you needed the solution, it comes back the next day.
Due today
Coming up this week
How it works
Every time you get Accepted, the problem moves one step along the 3 → 7 → 21 → 60 day ladder. Solve it again when it's due and it moves up. Used the solution? It drops back to 1 day. Progress is saved in this browser.