Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 941 (Div. 1)
37:45:44
Register now »

*has extra registration

Before contest
Codeforces Round 941 (Div. 2)
37:45:43
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
730B	Minimum and Maximum constructive algorithms, interactive	1800	x2375
1073E	Segment Sum bitmasks, combinatorics, dp, math	2300	x2373
417D	Cunning Gena bitmasks, dp, greedy, sortings	1900	x2372
7B	Memory Manager implementation	1600	x2369
534D	Handshakes binary search, constructive algorithms, data structures, greedy	1900	x2367
847H	Load Testing greedy	1600	x2366
1936B	Pinball binary search, data structures, implementation, math, two pointers	2000	x2364
741C	Arpa’s overnight party and Mehrdad’s silent entering constructive algorithms, dfs and similar, graphs	2600	x2364
141C	Queue constructive algorithms, greedy, sortings	1800	x2364
336C	Vasily the Bear and Sequence brute force, greedy, implementation, number theory	1800	x2362
1234F	Yet Another Substring Reverse bitmasks, dp	2200	x2355
27D	Ring Road 2 2-sat, dfs and similar, dsu, graphs	2200	x2355
1537F	Figure Fixing constructive algorithms, dfs and similar, dsu, graphs, greedy, math	2200	x2353
691E	Xor-sequences matrices	1900	x2353
592D	Super M dfs and similar, dp, graphs, trees	2200	x2353
1251E2	Voting (Hard Version) binary search, data structures, greedy	2400	x2352
1706E	Qpwoeirut and Vertices binary search, data structures, dfs and similar, divide and conquer, dsu, greedy, trees	2300	x2351
1202C	You Are Given a WASD-string... brute force, data structures, dp, greedy, implementation, math, strings	2100	x2351
762C	Two strings binary search, hashing, strings, two pointers	2100	x2351
1526D	Kill Anton brute force, constructive algorithms, data structures, math, strings	2200	x2350
160D	Edges in MST dfs and similar, dsu, graphs, sortings	2300	x2348
1710B	Rain binary search, brute force, data structures, geometry, greedy, implementation, math	2100	x2347
1942D	Learning to Paint binary search, data structures, dfs and similar, dp, greedy, implementation, sortings	2100	x2343
846D	Monitor binary search, data structures	1900	x2341
1295E	Permutation Separation data structures, divide and conquer	2200	x2340
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2338
1010D	Mars rover dfs and similar, graphs, implementation, trees	2000	x2338
1536E	Omkar and Forest combinatorics, graphs, math, shortest paths	2300	x2337
175A	Robot Bicorn Attack brute force, implementation	1400	x2334
138A	Literature Lesson implementation	1600	x2332
1305F	Kuroni and the Punishment math, number theory, probabilities	2500	x2330
1650G	Counting Shortcuts data structures, dfs and similar, dp, graphs, shortest paths	2100	x2329
1216F	Wi-Fi data structures, dp, greedy	2100	x2329
1920E	Counting Binary Strings combinatorics, dp, math	2100	x2327
845D	Driving Test data structures, dp, greedy	1800	x2327
228E	The Road to Berland is Paved With Good Intentions 2-sat, dfs and similar, dsu, graphs	1900	x2327
847C	Sum of Nestings constructive algorithms	1800	x2326
1593F	Red-Black Number dfs and similar, dp, implementation, math, meet-in-the-middle	2100	x2323
1213F	Unstable String Sort data structures, dfs and similar, dsu, graphs, greedy, implementation, strings	2100	x2323
1168C	And Reachability bitmasks, dp	2200	x2322
501D	Misha and Permutations Summation data structures	2000	x2321
1152D	Neko and Aki's Prank dp, greedy, trees	2100	x2318
1761D	Carry Bit combinatorics, math	2100	x2317
1056C	Pick Heroes greedy, implementation, interactive, sortings	1700	x2315
1106E	Lunar New Year and Red Envelopes data structures, dp	2100	x2314
1641C	Anonymity Is Important binary search, brute force, data structures, dsu, greedy, sortings	2200	x2312
57C	Array combinatorics, math	1900	x2311
547A	Mike and Frog brute force, greedy, implementation, math	2200	x2310
757C	Felicity is Coming! data structures, hashing, sortings, strings	1900	x2306
653D	Delivery Bears binary search, flows, graphs	2200	x2305
786A	Berzerk dfs and similar, dp, games	2000	x2303
292D	Connected Components data structures, dfs and similar, dp, dsu	1900	x2303
1033D	Divisors interactive, math, number theory	2000	x2302
413C	Jeopardy! greedy, math	1400	x2301
45I	TCMCF+++ greedy	1400	x2300
1196F	K-th Path brute force, constructive algorithms, shortest paths, sortings	2200	x2299
915F	Imbalance Value of a Tree data structures, dsu, graphs, trees	2400	x2299
533B	Work Group dfs and similar, dp, graphs, strings, trees	2000	x2298
526F	Pudding Monsters data structures, divide and conquer	3000	x2298
340E	Iahub and Permutations combinatorics, math	2000	x2297
135B	Rectangle and Square brute force, geometry, math	1600	x2294
1371E2	Asterism (Hard Version) binary search, combinatorics, dp, math, number theory, sortings	2300	x2292
1061D	TV Shows data structures, greedy, implementation, sortings	2000	x2292
29D	Ant on the Tree constructive algorithms, dfs and similar, trees	2000	x2290
1646E	Power Board brute force, dp, math, number theory	2200	x2289
780E	Underground Lab constructive algorithms, dfs and similar, graphs	2100	x2288
1906M	Triangle Construction greedy, math	1700	x2286
1822G2	Magic Triples (Hard Version) brute force, data structures, math, number theory	2200	x2286
1248D1	The World Is Just a Programming Task (Easy Version) brute force, dp, greedy, implementation	2000	x2286
1100E	Andrew and Taxi binary search, dfs and similar, graphs	2200	x2285
156C	Cipher combinatorics, dp	2000	x2281
788B	Weird journey combinatorics, constructive algorithms, dfs and similar, dsu, graphs	2100	x2278
1039B	Subway Pursuit binary search, interactive, probabilities	2100	x2275
1183G	Candy Box (hard version) greedy, implementation, sortings	2000	x2274
351B	Jeff and Furik combinatorics, dp, probabilities	1900	x2271
132C	Logo Turtle dp	1800	x2268
813E	Army Creation binary search, data structures	2200	x2266
1184C1	Heidi and the Turing Test (Easy) implementation	1600	x2262
702E	Analysis of Pathes in Functional Graph data structures, graphs	2100	x2262
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2261
1579G	Minimal Coverage dp	2200	x2259
1070A	Find a Number dp, graphs, number theory, shortest paths	2200	x2259
1619G	Unusual Minesweeper binary search, dfs and similar, dsu, greedy, sortings	2000	x2258
526C	Om Nom and Candies brute force, greedy, math	2000	x2258
1408F	Two Different constructive algorithms, divide and conquer	2300	x2257
985D	Sand Fortress binary search, constructive algorithms, math	2100	x2253
778B	Bitwise Formula bitmasks, brute force, dfs and similar, expression parsing, implementation	1800	x2253
1924B	Space Harbour data structures, implementation, math, sortings	2100	x2251
1799D2	Hot Start Up (hard version) data structures, dp	2100	x2251
615C	Running Track dp, greedy, strings, trees	2000	x2251
721D	Maxim and Array constructive algorithms, data structures, greedy, math	2000	x2250
724D	Dense Subsequence data structures, greedy, strings	1900	x2249
1498D	Bananas in a Microwave dfs and similar, dp, graphs, implementation	2200	x2246
1385F	Removing Leaves data structures, greedy, implementation, trees	2300	x2243
982D	Shark brute force, data structures, dsu, trees	1900	x2243
908D	New Year and Arbitrary Arrangement dp, math, probabilities	2200	x2240
840B	Leha and another game about graph constructive algorithms, data structures, dfs and similar, dp, graphs	2100	x2239
1476E	Pattern Matching bitmasks, data structures, dfs and similar, graphs, hashing, sortings, strings	2300	x2238
523D	Statistics of Recompressing Videos *special problem, data structures, implementation	1600	x2235
468C	Hack it! binary search, constructive algorithms, math	2500	x2235