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Problemset

2,107 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
2057C	Trip to the Olympiad bitmasks constructive algorithms greedy math	1500	14.1k
2057G	Secret Message constructive algorithms dfs and similar math	3000	764
2056A	Shape Perimeter constructive algorithms math	800	27k
2056C	Palindromic Subsequences brute force constructive algorithms math	1200	19.8k
2055A	Two Frogs constructive algorithms games greedy math	800	34k
2055B	Crafting constructive algorithms greedy sortings	1000	27.7k
2055C	The Trail brute force constructive algorithms greedy math two pointers	1400	17.6k
2055E	Haystacks brute force constructive algorithms data structures greedy sortings	2800	496
2053H	Delicate Anti-monotonous Operations constructive algorithms implementation	3500	84
2052A	Adrenaline Rush constructive algorithms	1600	4.4k
2052C	Cactus without Bridges constructive algorithms math	3500	64
2052F	Fix Flooded Floor constructive algorithms dp graphs	1700	3.9k
2051C	Preparing for the Exam constructive algorithms implementation	1000	28.5k
2049B	pspspsps brute force constructive algorithms graph matchings implementation	1300	19.2k
2049C	MEX Cycle brute force constructive algorithms greedy implementation	1500	13.9k
2049E	Broken Queries binary search bitmasks brute force constructive algorithms implementation interactive	2400	1.6k
2048B	Kevin and Permutation constructive algorithms greedy	900	20.9k
2048E	Kevin and Bipartite Graph constructive algorithms graphs greedy	2000	3.6k
2048I1	Kevin and Puzzle (Easy Version) constructive algorithms	3500	109
2046E1	Cheops and a Contest (Easy Version) constructive algorithms greedy	2900	236
2046F1	Yandex Cuneiform (Easy Version) constructive algorithms data structures greedy	3300	142
2046F2	Yandex Cuneiform (Hard Version) constructive algorithms data structures greedy implementation	3500	110
2045L	Buggy DFS constructive algorithms	3000	166
2044D	Harder Problem constructive algorithms greedy math	1100	24.6k
2044H	Hard Demon Problem constructive algorithms data structures dp implementation math	2100	2.7k
2041E	Beautiful Array constructive algorithms math	1200	10.2k
2040B	Paint a Strip constructive algorithms greedy math	1000	24.5k
2040C	Ordered Permutations bitmasks combinatorics constructive algorithms greedy math two pointers	1600	11k
2040D	Non Prime Tree brute force constructive algorithms dfs and similar greedy number theory trees two pointers	1900	5.9k
2039A	Shohag Loves Mod constructive algorithms number theory	800	18.3k
2039B	Shohag Loves Strings constructive algorithms greedy implementation strings	1000	17.6k
2039D	Shohag Loves GCD constructive algorithms greedy math number theory	1700	7.2k
2039H1	Cool Swap Walk (Easy Version) constructive algorithms implementation sortings	3500	105
2039H2	Cool Swap Walk (Hard Version) constructive algorithms implementation sortings	3500	100
2038G	Guess One Character constructive algorithms implementation interactive	1900	3k
2037C	Superultra's Favorite Permutation constructive algorithms greedy math number theory	1000	26k
2036E	Reverse the Rivers binary search constructive algorithms data structures greedy	1600	9.8k
2036G	Library of Magic binary search constructive algorithms divide and conquer interactive math number theory	2200	1.7k
2035B	Everyone Loves Tres constructive algorithms greedy math number theory	900	20.9k
2035C	Alya and Permutation bitmasks constructive algorithms math	1400	11.8k
2035E	Monster binary search brute force constructive algorithms greedy implementation math ternary search	2300	2k
2035H	Peak Productivity Forces constructive algorithms	3500	102
2034C	Trapped in the Witch's Labyrinth constructive algorithms dfs and similar graphs implementation	1400	9.4k
2034D	Darius' Wisdom constructive algorithms greedy implementation sortings	1600	6.8k
2034E	Permutations Harmony combinatorics constructive algorithms greedy hashing math	2200	2.1k
2034G1	Simurgh's Watch (Easy Version) constructive algorithms greedy implementation sortings	3500	80
2033A	Sakurako and Kosuke constructive algorithms implementation math	800	41.7k
2033B	Sakurako and Water brute force constructive algorithms greedy	900	29.3k
2032B	Medians constructive algorithms greedy implementation math	1100	21.1k
2032D	Genokraken constructive algorithms data structures graphs greedy implementation interactive trees two pointers	1800	6.3k
2032E	Balanced constructive algorithms data structures greedy implementation math	2400	1.4k
2031A	Penchick and Modern Monument constructive algorithms dp greedy math	800	21.2k
2031C	Penchick and BBQ Buns constructive algorithms math number theory	1300	16k
2031F	Penchick and Even Medians binary search constructive algorithms interactive probabilities	2800	476
2030A	A Gift From Orangutan constructive algorithms greedy math sortings	800	27.8k
2030B	Minimise Oneness combinatorics constructive algorithms games math	800	24k
2029B	Replacement constructive algorithms games strings	1100	12k
2029D	Cool Graph constructive algorithms data structures dfs and similar dsu graphs greedy trees	1900	4k
2029E	Common Generator brute force constructive algorithms math number theory	2100	3.6k
2029F	Palindrome Everywhere constructive algorithms graphs greedy	2500	866
2028D	Alice's Adventures in Cards constructive algorithms data structures dp graphs greedy implementation ternary search	2000	3.8k
2026A	Perpendicular Segments constructive algorithms geometry greedy math	900	20.5k
2026B	Black Cells binary search brute force constructive algorithms greedy	1300	16.8k
2026C	Action Figures binary search brute force constructive algorithms data structures greedy implementation	1500	12.9k
2025F	Choose Your Queries constructive algorithms dfs and similar dp graphs greedy trees	2700	1.1k
2024B	Buying Lemonade binary search constructive algorithms sortings	1100	17.3k
2023A	Concatenation of Arrays constructive algorithms greedy math sortings	1300	16.9k
2023C	C+K+S constructive algorithms dfs and similar graphs greedy hashing implementation strings	2400	1.4k
2022A	Bus to Pénjamo constructive algorithms greedy implementation math	800	17.4k
2022D1	Asesino (Easy Version) binary search brute force constructive algorithms implementation interactive	1900	4.1k
2022D2	Asesino (Hard Version) constructive algorithms dp interactive	2700	845
2022E1	Billetes MX (Easy Version) 2-sat binary search combinatorics constructive algorithms dfs and similar dsu graphs	2500	780
2021C1	Adjust The Presentation (Easy Version) constructive algorithms greedy	1300	14.3k
2021C2	Adjust The Presentation (Hard Version) constructive algorithms data structures greedy implementation sortings	1900	4.6k
2013A	Zhan's Blender constructive algorithms math	800	31.5k
2013B	Battle for Survive constructive algorithms greedy math	900	28.7k
2013C	Password Cracking constructive algorithms interactive strings	1400	14.9k
2008A	Sakurako's Exam brute force constructive algorithms greedy math	800	42.3k
2006A	Iris and Game on the Tree constructive algorithms dfs and similar games graphs greedy trees	1700	9.8k
2006F	Dora's Paint brute force combinatorics constructive algorithms graphs implementation	3500	173
2005A	Simple Palindrome combinatorics constructive algorithms greedy math	900	26.7k
2003C	Turtle and Good Pairs constructive algorithms greedy sortings strings	1200	22k
2002A	Distanced Coloring constructive algorithms implementation math	800	21.4k
2002B	Removals Game constructive algorithms games	1000	23.4k
2001B	Generate Permutation constructive algorithms	800	26.3k
2001D	Longest Max Min Subsequence brute force constructive algorithms data structures greedy implementation	1900	6.6k
1999B	Card Game brute force constructive algorithms implementation	1000	42.6k
1998A	Find K Distinct Points with Fixed Center constructive algorithms implementation math	800	26.3k
1998B	Minimize Equal Sum Subarrays constructive algorithms math number theory	1000	28.5k
1998C	Perform Operations to Maximize Score binary search brute force constructive algorithms greedy implementation	1900	7.2k
1997B	Make Three Regions constructive algorithms two pointers	1100	23.7k
1997C	Even Positions constructive algorithms data structures greedy	1100	25.8k
1995C	Squaring brute force constructive algorithms greedy implementation math number theory	1800	10.4k
1994A	Diverse Game constructive algorithms greedy implementation	800	22.5k
1994B	Fun Game bitmasks constructive algorithms greedy math	1100	19.8k
1994D	Funny Game constructive algorithms dsu graphs greedy math number theory trees	1900	7.7k
1994F	Stardew Valley constructive algorithms dfs and similar graphs trees	2500	1.6k
1994H	Fortnite combinatorics constructive algorithms games greedy hashing interactive math number theory strings	3500	779
1993B	Parity and Sum constructive algorithms greedy	1100	26.8k
1993E	Xor-Grid Problem bitmasks constructive algorithms dp implementation	2700	741

showing 301–400 of 2,107