Date Name Tags
yesterday
k-Amazing Numbers data structures binary search implementation two pointers
yesterday
XOR Inverse bitmasks divide and conquer strings trees data structures greedy
yesterday
Graph and Queries data structures dsu trees dfs and similar graphs
yesterday
Split data structures dp greedy
yesterday
k-Amazing Numbers data structures
yesterday
Graph and Queries data structures dsu trees
yesterday
Impressive Harvesting of The Orchard data structures
Sept. 25, 2020
E-Sports Tournament data structures
Sept. 24, 2020
Pokémon Army (hard version) data structures dp greedy divide and conquer implementation
Sept. 24, 2020
Rescue Nibel! data structures combinatorics sortings
Sept. 19, 2020
Rain of Fire binary search graphs dsu dfs and similar implementation data structures
Sept. 14, 2020
Trash Problem data structures implementation
Sept. 14, 2020
Equal Product two pointers data structures math number theory
Sept. 14, 2020
Three Occurrences hashing two pointers data structures probabilities
Sept. 12, 2020
Three Sequences math data structures greedy constructive algorithms
Sept. 8, 2020
Discrete Centrifugal Jumps data structures dp graphs
Sept. 6, 2020
Fixed Point Removal data structures binary search greedy two pointers constructive algorithms
Sept. 6, 2020
Fixed Point Removal data structures sortings binary search
Aug. 30, 2020
Rainbow Rectangles data structures two pointers sortings
Aug. 28, 2020
The Potion of Great Power *special binary search data structures graphs interactive sortings two pointers 2-sat
Aug. 28, 2020
Spring cleaning *special data structures dfs and similar graphs trees
Aug. 26, 2020
Fancy Fence *special data structures dsu math sortings implementation
Aug. 25, 2020
Zigzags two pointers data structures math brute force combinatorics
Aug. 25, 2020
Clear the Multiset dp greedy divide and conquer data structures
Aug. 21, 2020
Incredible photography data structures dp
Aug. 21, 2020
Java exam data structures graphs
Aug. 21, 2020
Divide Square data structures geometry implementation sortings
Aug. 21, 2020
Reverse and Swap binary search bitmasks data structures
Aug. 16, 2020
Omkar and Landslide binary search constructive algorithms greedy math data structures
Aug. 14, 2020
Good Subarrays data structures math dp
Aug. 14, 2020
Two Types of Spells data structures greedy math binary search implementation sortings
Aug. 14, 2020
Controversial Rounds dp two pointers binary search data structures greedy
Aug. 7, 2020
Applejack and Storages data structures implementation greedy constructive algorithms
Aug. 5, 2020
Binary String To Subsequences greedy constructive algorithms data structures implementation
Aug. 5, 2020
Weights Division (easy version) dfs and similar greedy trees data structures
Aug. 5, 2020
Yet Another Segments Subset dp sortings data structures graphs
July 30, 2020
Captain Flint and Treasure graphs greedy dfs and similar trees implementation data structures
July 30, 2020
Uncle Bogdan and Projections geometry sortings data structures
July 29, 2020
Bicolored Segments data structures dp graph matchings sortings
July 24, 2020
Strange Operation data structures dp combinatorics
July 22, 2020
Mixture *special data structures geometry math sortings
July 22, 2020
Joker *special bitmasks data structures divide and conquer dsu
July 21, 2020
Prefix Flip (Easy Version) constructive algorithms data structures strings
July 21, 2020
Prefix Flip (Hard Version) constructive algorithms data structures strings two pointers implementation
July 21, 2020
Prefix Flip (Easy Version) constructive algorithms data structures strings
July 21, 2020
Prefix Flip (Hard Version) constructive algorithms data structures strings implementation
July 19, 2020
Choosing flowers sortings binary search greedy two pointers brute force data structures dfs and similar dp
July 19, 2020
New Passenger Trams sortings brute force data structures two pointers binary search
July 19, 2020
Chess Strikes Back (easy version) data structures binary search
July 19, 2020
Chess Strikes Back (hard version) data structures divide and conquer
more