leetcycle.comproof of work
@maxchen
current streak
47days
Inferno
- reviewed
- 487
- mastered
- 74
- health
- 94%
last 30 days
activity
top patterns
- dynamic programming18
- arrays & hashing24
- graphs · bfs/dfs9
14 problems · due today
Walk in
already
remembering.
Every problem you’ve solved goes into orbit. The schedule pulls each one back the moment before you’d forget the pattern, so when the interview hits, the solution’s already there.
Sign in to add your first problem. Pick an account you already use.
Free · no card · 30s setup
#146LRU Cache
#207Course Schedule
#200Number of Islands
#121Best Time Buy/Sell
#295Median From Stream
#322Coin Change
#76Min Window Substring
#198House Robber
today
14
due nowBuilt for candidates interviewing at teams like*
control center
Dashboard
8
Total Tracked
2 mastered
- / 3
Today's Goal
🔥 12
Day Streak
-
Reviews Due
distribution
■ easy · 1■ med · 5■ hard · 2
problempatterndiffschedulestateops
#146LRU Cache
Hash Table
Medium
-
practicing
#207Course Schedule
Graph
Medium
-
learning
#200Number of Islands
Graph
Medium
-
practicing
#295Find Median from Data Stream
Heap
Hard
-
practicing
#121Best Time to Buy and Sell Stock
Array
Easy
-
mastered
#76Minimum Window Substring
Sliding Window
Hard
-
practicing
#322Coin Change
Dynamic Programming
Medium
-
learning
#198House Robber
Dynamic Programming
Medium
-
mastered
the loopTwo modes.
Two modes.
Five buttons.
Zero ceremony.
- LLearning
Binary review until the pattern lands. Got it / didn't.
- PPracticing
Five-button SR. Bad ratings come back tomorrow. Great ratings push out weeks.
- MMastered
Three Goods in a row. Maintenance only: every 90 days the pattern resurfaces.
Preview
Review Session
7 / 8
PracticingMediumDynamic Programming
Coin Change
Given coin denominations and a target amount, return the fewest coins needed. Return -1 if impossible.
proof of workReceipts you’ll
Receipts you’ll
actually want to post.
heatmap · mastery · grind card
· built to be screenshotted
activity · last 26 weeks
487 reviews · 47d streak
lessmore
nov
dec
jan
feb
mar
apr
mastery by pattern
74 / 115
Arrays & Hashing24/28
Two Pointers12/14
Dynamic Prog.18/31
Graphs7/19
card health · by review maturity
94% remembered on last review
Snapshot of each card's most recent grade, not a forgetting curve.
the grind card
One tap. Built for the timeline.
A self-contained card with your streak, problems mastered, top patterns, and the day’s heatmap row. Looks great pinned to a profile.
Built to postScreenshot-readyStreak, stats & top patterns
Questions you'd ask anyway.
Anki is a general-purpose memorization box. LeetCycle is built around how people actually prep for coding interviews: problems and patterns, a clear path from learning to practicing to mastered, and reviews tuned to that workflow, not generic decks.
Yes, that is the loop. Every review means redoing the problem, then rating confidence so spaced repetition reflects real work, not vibes. Keep reps focused: open it, solve it, log how it felt, next card.
You add problems with a LeetCode URL (or a name). LeetCycle does not run your code or sync your official submission history. It's your practice OS: scheduling, confidence, and progress live here.
Your streak reflects consecutive days you showed up. Miss a day and it resets, plain and simple. What doesn't reset is the point of the system: cards come back when the schedule says they should, so the queue can feel heavier until you clear it. That's consistency mechanics, not punishment.
Your library and review history are tied to your account, not a public leaderboard by default.
your next interviewWalk in already
Walk in already
remembering.
No re-grinding. The schedule won’t let your patterns dull.