Date Name Tags
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
XOR Inverse bitmasks divide and conquer strings trees
yesterday
Graph and Queries data structures dsu trees
Sept. 12, 2020
Link Cut Centroids dfs and similar graphs constructive algorithms trees
Sept. 6, 2020
Tree Tag dfs and similar dp games trees
Sept. 6, 2020
Tree Tag dfs and similar dp games trees constructive algorithms strings
Aug. 30, 2020
Distance Matching constructive algorithms dfs and similar trees
Aug. 28, 2020
Spring cleaning *special data structures dfs and similar graphs trees
Aug. 26, 2020
Star Trek *special combinatorics dfs and similar dp games graphs trees matrices
Aug. 21, 2020
Maximum Distributed Tree greedy number theory sortings trees dfs and similar dp implementation math
Aug. 16, 2020
Circumference of a Tree dfs and similar trees
Aug. 16, 2020
Dynamic Diameter dfs and similar trees
Aug. 16, 2020
Sloth Naptime trees
Aug. 16, 2020
Cycle Free Flow trees
Aug. 16, 2020
Filthy Rich Trees trees
Aug. 16, 2020
The Lorax trees
Aug. 12, 2020
Boboniu and Jianghu dp sortings trees greedy
Aug. 9, 2020
Pairs of Pairs constructive algorithms dfs and similar graphs trees greedy
Aug. 5, 2020
Weights Division (easy version) dfs and similar greedy trees data structures
Aug. 5, 2020
Weights Division (hard version) dfs and similar greedy trees two pointers binary search sortings
July 30, 2020
Uncle Bogdan and Country Happiness trees greedy dfs and similar math
July 30, 2020
Captain Flint and Treasure graphs greedy dfs and similar trees implementation data structures
July 29, 2020
Directing Edges graphs trees dfs and similar dp
July 24, 2020
String Transformation 1 graphs trees greedy dsu sortings strings two pointers
July 24, 2020
String Transformation 2 dp graphs trees bitmasks
July 24, 2020
String Transformation 1 graphs trees dfs and similar dsu sortings greedy
July 24, 2020
String Transformation 2 dp graphs trees bitmasks
July 23, 2020
Village (Minimum) *special greedy dp trees
July 23, 2020
Village (Maximum) *special dfs and similar trees
July 21, 2020
The Majestic Brown Tree Snake dp greedy trees dfs and similar two pointers
July 19, 2020
Inverse Genealogy constructive algorithms dp math trees divide and conquer
July 17, 2020
Removing Leaves greedy implementation trees data structures
July 12, 2020
E. Merging Towers data structures dsu implementation trees
July 4, 2020
G. Tree Modification trees dfs and similar constructive algorithms brute force graphs graph matchings
June 23, 2020
D. TediousLee dp graphs greedy math matrices trees
June 20, 2020
F1. The Hidden Pair (Easy Version) interactive shortest paths trees dfs and similar
June 20, 2020
F2. The Hidden Pair (Hard Version) interactive shortest paths trees dfs and similar
June 18, 2020
G. Shifting Dominoes geometry trees
June 14, 2020
G. Secret Society and a Certain Someone trees
June 13, 2020
D. Ehab's Last Corollary trees
June 4, 2020
D. Johnny and James trees
June 4, 2020
E. James and the Chase probabilities trees
May 16, 2020
C. Начинающий маг trees
May 6, 2020
E. Train Tracks trees
April 23, 2020
D. Nastya and Time Machine trees
April 15, 2020
A. Linova and Kingdom trees
April 15, 2020
F. Journey divide and conquer trees
April 15, 2020
C. Linova and Kingdom trees
April 12, 2020
B. Edge Weight Assignment bitmasks trees
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