Date Name Tags
Sept. 19, 2020
Sage's Birthday (easy version) binary search sortings greedy constructive algorithms
Sept. 19, 2020
Sage's Birthday (hard version) binary search sortings greedy two pointers brute force constructive algorithms
Sept. 14, 2020
Negative Prefixes greedy sortings
Sept. 12, 2020
Maximum Product greedy sortings implementation brute force dp
Sept. 6, 2020
Fixed Point Removal data structures sortings binary search
Sept. 4, 2020
Two Platforms two pointers dp sortings binary search
Aug. 30, 2020
Rainbow Rectangles data structures two pointers sortings
Aug. 30, 2020
Power Sequence brute force math number theory sortings
Aug. 28, 2020
The Potion of Great Power *special binary search data structures graphs interactive sortings two pointers 2-sat
Aug. 26, 2020
Fancy Fence *special data structures dsu math sortings implementation
Aug. 26, 2020
Roads *special geometry sortings
Aug. 21, 2020
Katastrophic sort sortings
Aug. 21, 2020
Mere Array constructive algorithms math number theory sortings
Aug. 21, 2020
Maximum Distributed Tree greedy number theory sortings trees dfs and similar dp implementation math
Aug. 21, 2020
Divide Square data structures geometry implementation sortings
Aug. 14, 2020
Substring Removal Game greedy games sortings
Aug. 14, 2020
Colored Rectangles dp greedy sortings
Aug. 14, 2020
Two Types of Spells data structures greedy math binary search implementation sortings
Aug. 12, 2020
Boboniu Chats with Du dp greedy two pointers sortings
Aug. 12, 2020
Boboniu and Jianghu dp sortings trees greedy
Aug. 12, 2020
Boboniu Chats with Du dp greedy brute force sortings
Aug. 7, 2020
Pinkie Pie Eats Patty-cakes greedy sortings constructive algorithms math
Aug. 5, 2020
Remove Smallest greedy sortings
Aug. 5, 2020
Weights Division (hard version) dfs and similar greedy trees two pointers binary search sortings
Aug. 5, 2020
Yet Another Segments Subset dp sortings data structures graphs
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
String Transformation 1 graphs trees greedy dsu sortings strings two pointers
July 24, 2020
Rearrange constructive algorithms greedy graphs sortings brute force
July 24, 2020
String Transformation 1 graphs trees dfs and similar dsu sortings greedy
July 22, 2020
Mixture *special data structures geometry math sortings
July 21, 2020
Mastermind constructive algorithms greedy implementation sortings graph matchings two pointers
July 21, 2020
Origami geometry math sortings
July 21, 2020
Mastermind constructive algorithms greedy implementation sortings
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 12, 2020
C. Create The Teams dp greedy sortings brute force implementation
July 4, 2020
D. Replace by MEX constructive algorithms brute force sortings
July 4, 2020
E. Inversion SwapSort constructive algorithms greedy sortings
July 1, 2020
E1. Asterism (Easy Version) combinatorics number theory sortings math binary search brute force
July 1, 2020
E2. Asterism (Hard Version) number theory sortings binary search math combinatorics dp
June 28, 2020
D. Zero Remainder Array math sortings two pointers
June 28, 2020
E1. Reading Books (easy version) greedy sortings data structures
June 28, 2020
E2. Reading Books (hard version) greedy sortings data structures two pointers implementation ternary search
June 28, 2020
F. Cyclic Shifts Sorting constructive algorithms brute force implementation sortings
June 26, 2020
D. Distributed Computing sortings
June 23, 2020
C. RationalLee greedy math sortings two pointers
June 23, 2020
E. DeadLee data structures greedy implementation sortings dfs and similar
May 17, 2020
F. Summoning Minions sortings
May 16, 2020
B. Young Explorers sortings
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