Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round (Div. 2)
5 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

sortings

Add tag

Problems

#	Name
2275G	Copper Squander binary search, data structures, dsu, graphs, greedy, math, sortings, ternary search		x1357
2267F2	XOR Transformations (Hard Version) bitmasks, brute force, data structures, dfs and similar, greedy, math, sortings, strings, trees	2300	x937
2267F1	XOR Transformations (Easy Version) bitmasks, brute force, implementation, sortings	1700	x4174
2267D	Backrooms Hill constructive algorithms, dp, greedy, sortings, two pointers	1400	x7965
2267B	Fashionable Array brute force, constructive algorithms, sortings	800	x16046
2266F	MEX Replacement binary search, brute force, greedy, implementation, math, sortings	2000	x1962
2266D	Falling Concrete constructive algorithms, data structures, math, sortings	1400	x9146
2264C	Madamant's Skating Dynasty combinatorics, math, sortings	1400	x7415
2264A	Rumb Needs a Hand implementation, implementation, implementation, sortings, sortings, sortings, two pointers, two pointers, two pointers	800	x16268
2261G	1 2 3 and XOR, Where Did Everybody Go? bitmasks, data structures, divide and conquer, dp, greedy, sortings, two pointers		x222
2257E	Busy Beaver brute force, data structures, divide and conquer, dp, greedy, implementation, sortings	2100	x2276
2256A	Three Numbers on the Blackboard math, math, math, math, sortings	800	x26386
2255D	How Long Until Nothing Remains? binary search, bitmasks, data structures, greedy, math, sortings	2300	x1749
2254G	Nightcrawler data structures, dfs and similar, dp, greedy, greedy, sortings, trees	2200	x1350
2254F	Whiplash bitmasks, constructive algorithms, math, sortings	1900	x3679
2254D	Silhouette constructive algorithms, math, sortings	1300	x11418
2254C2	Marenol (hard version) greedy, sortings	1200	x14860
2254A	Riptide implementation, sortings	800	x37888
2253C	Sum of Distinct Values in a Matrix greedy, sortings, two pointers	1500	x8426
2252F	Spectral Components dfs and similar, dp, dp, greedy, sortings, trees	2600	x595
2252D	Array Replacement greedy, sortings	1700	x5857
2252C	Risky Tower binary search, brute force, data structures, greedy, sortings	1400	x10577
2248B	Merge to Match greedy, sortings	1000	x15453
2245D1	Construct an Array (Easy Version) dfs and similar, implementation, sortings	1700	x4074
2244C	Stepan and Permutation constructive algorithms, dfs and similar, dsu, greedy, math, number theory, sortings, sortings, sortings	1100	x18398
2244B	Nikita and Books greedy, greedy, math, math, sortings, sortings	800	x25795
2242C	Unstable Elements brute force, brute force, data structures, implementation, sortings, two pointers, two pointers	1300	x12122
2242A	Bigrams sortings, strings	800	x25569
2239B	Decidophobia greedy, math, sortings, two pointers	1600	x7623
2238A	Another Puzzle from Papyrus greedy, math, sortings	800	x20579
2234A	Euclid, Sequence and Two Numbers math, number theory, sortings	800	x25083
2233E2	Permutation Transmission (Difficult Version) bitmasks, combinatorics, sortings	2300	x1397
2233E1	Permutation Transmission (Easy Version) bitmasks, combinatorics, sortings	2300	x1317
2232A	Convergence greedy, sortings, sortings, sortings	800	x23985
2231C	Chipmunk Theo and Equality implementation, sortings	1400	x12610
2230E	Minimum Influence binary search, data structures, greedy, implementation, math, sortings, two pointers	2200	x1587
2224B	Zhily and Mex and Max constructive algorithms, greedy, math, sortings	1200	x9926
2223B	Zhily and Barknights binary search, data structures, dp, math, sortings, two pointers	1600	x4128
2222D	Permutation Construction constructive algorithms, data structures, sortings	1800	x4355
2222B	Artistic Balance Tree greedy, sortings	1100	x9461
2220A	Blocked greedy, sortings	800	x21959
2217E	Definitely Larger binary search, constructive algorithms, data structures, graphs, greedy, sortings	2100	x2592
2215E	Star Map constructive algorithms, data structures, geometry, greedy, sortings	2700	x244
2208D2	Tree Orientation (Hard Version) dfs and similar, dsu, graphs, greedy, sortings, trees	2200	x2203
2208B	Cyclists brute force, games, greedy, implementation, math, sortings	1100	x15594
2207B	One Night At Freddy's games, greedy, sortings	1600	x6885
2205C	Simons and Posting Blogs greedy, greedy, greedy, sortings	1500	x9064
2200F	Mooclear Reactor 2 brute force, data structures, greedy, implementation, sortings	1900	x3468
2200D	Portal greedy, sortings	1300	x14284
2200B	Deletion Sort bitmasks, brute force, greedy, sortings	800	x29154
2197B	Array and Permutation implementation, schedules, sortings, two pointers	1100	x17496
2195F	Parabola Independence dp, graphs, greedy, math, sortings	2000	x3085
2195B	Heapify 1 implementation, sortings	900	x27788
2193G	Paths in a Tree dfs and similar, interactive, sortings, trees	2100	x2478
2193D	Monster Game binary search, sortings, two pointers	1100	x23595
2191B	MEX Reordering constructive algorithms, sortings	1000	x21447
2190C	Comparable Permutations greedy, implementation, interactive, sortings, two pointers	2300	x1407
2189F	Zhora the Vacuum Cleaner data structures, dfs and similar, dp, greedy, implementation, sortings, trees	2800	x268
2187G	Many Cartesian Trees greedy, sortings, trees	3500	x126
2187A	Restricted Sorting greedy, sortings	1300	x17202
2185C	Shifted MEX implementation, sortings	900	x31810
2184E	Exquisite Array combinatorics, data structures, dsu, sortings	1800	x6500
2183H	Minimise Cost binary search, dp, greedy, sortings	3500	x181
2182E	New Year's Gifts binary search, data structures, greedy, sortings, two pointers	1800	x6094
2181E	Elevator Against Humanity brute force, constructive algorithms, greedy, sortings	2900	x172
2181D	Doorway binary search, data structures, sortings	2000	x1545
2179C	Blackslex and Number Theory implementation, math, number theory, sortings	1100	x23743
2176D	Fibonacci Paths data structures, dp, graphs, sortings	1800	x6334
2176C	Odd Process greedy, sortings	1300	x16862
2173E	Shiro's Mirror Duel constructive algorithms, greedy, interactive, probabilities, sortings	2200	x1679
2172B	Buses greedy, sortings	1800	x2526
2171H	Shiori Miyagi and Maximum Array Score binary search, data structures, dp, sortings	2400	x1113
2167C	Isamatdin and His Magic Wand! constructive algorithms, greedy, implementation, sortings	800	x38083
2167B	Your Name sortings, strings	800	x56181
2167A	Square? math, sortings	800	x64302
2165B	Marble Council dp, math, sortings	1900	x6876
2164C	Dungeon binary search, brute force, data structures, greedy, sortings	1400	x13646
2164A	Sequence Game brute force, sortings	800	x23653
2163D2	Diadrash (Hard Version) binary search, interactive, math, sortings	2500	x1625
2163A	Souvlaki VS. Kalamaki brute force, greedy, math, sortings	800	x20510
2161C	Loyalty constructive algorithms, greedy, sortings, two pointers	1200	x13826
2157E	Adjusting Drones binary search, brute force, data structures, dp, dsu, greedy, implementation, sortings	1900	x5754
2157D	Billion Players Game binary search, greedy, math, sortings, ternary search, two pointers	1600	x8500
2157A	Dungeon Equilibrium greedy, implementation, sortings	800	x19276
2156F1	Strange Operation (Easy Version) brute force, data structures, greedy, implementation, sortings	2300	x1724
2154E	No Mind To Think binary search, divide and conquer, greedy, sortings, ternary search, two pointers	2500	x1285
2153C	Symmetrical Polygons constructive algorithms, geometry, greedy, implementation, sortings	1500	x12593
2153A	Circle of Apple Trees greedy, sortings	800	x27316
2150E1	Hidden Single (Version 1) divide and conquer, interactive, math, probabilities, sortings	2600	x2937
2149B	Unconventional Pairs greedy, sortings	800	x34551
2148F	Gravity Falls greedy, implementation, sortings	1800	x7108
2148D	Destruction of the Dandelion Fields constructive algorithms, greedy, sortings	1000	x28518
2145E	Predicting Popularity binary search, data structures, greedy, sortings	2100	x3318
2143B	Discounts greedy, sortings, two pointers	1000	x22749
2141G	Good Robot Paths *special problem, data structures, geometry, sortings	2800	x66
2140D	A Cruel Segment's Thesis data structures, greedy, sortings	2000	x5301
2140A	Shift Sort greedy, sortings	800	x23351
2138D	Antiamuny and Slider Movement brute force, combinatorics, implementation, math, sortings	2600	x694
2137F	Prefix Maximum Invariance binary search, combinatorics, data structures, sortings	1900	x4289
2132E	Arithmetics Competition binary search, data structures, greedy, sortings, ternary search	1700	x8711

←

The only programming contests Web 2.0 platform

Server time: Oct/19/2026 19:10:00 (g2).

Desktop version, switch to mobile version.

Supported by