Compete & climb the ranks
Contests
Timed, rated rounds with a live leaderboard. Pick a contest to enter the arena.
1
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3
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180+
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#42
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Weekly Contest 142
Live now · ends in 45m
Four fresh problems across arrays, DP and graphs. Climb the live board.
4 problems 1h 30m 1,284Medium
Biweekly Contest 89
Starts in 2 days · Sat 8:00 PM
Bi-weekly rated round. Register now to get a reminder before it starts.
4 problems 1h 30m 642Medium
Dynamic Programming Sprint
Starts in 5 days · Tue 9:00 PM
A themed sprint — every problem is solvable with the right DP state.
5 problems 2h 00m 318Hard
Graph Theory Challenge
Ended · 3 days ago
BFS, DFS, shortest paths and MST. View the editorial and final ranks.
4 problems 1h 30m 2,104Hard
Weekly Contest 141
Ended · 1 week ago
Last week's rated round. Replay the problems in practice mode.
4 problems 1h 30m 1,876Medium
String Mastery Cup
Ended · 2 weeks ago
A beginner-friendly cup focused entirely on string patterns.
3 problems 1h 00m 1,432Easy