Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 941 (Div. 1)
2 days
Register now »

*has extra registration

Before contest
Codeforces Round 941 (Div. 2)
2 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
526E	Transmitting Levels dp, implementation	2400	x1052
498D	Traffic Jams in the Land data structures, dp, number theory	2400	x1061
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1062
1679E	Typical Party in Dorm bitmasks, combinatorics, dp, strings	2400	x1092
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1133
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1141
498B	Name That Tune dp, probabilities, two pointers	2400	x1147
1585F	Non-equal Neighbours combinatorics, dp, math	2400	x1148
1739E	Cleaning Robot bitmasks, dp	2400	x1164
1764E	Doremy's Number Line dp, greedy, sortings	2400	x1173
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1175
906C	Party bitmasks, brute force, dp, graphs	2400	x1179
1542E1	Abnormal Permutation Pairs (easy version) combinatorics, dp, fft, math	2400	x1180
1736C2	Good Subarrays (Hard Version) binary search, data structures, dp, two pointers	2400	x1228
1499F	Diameter Cuts combinatorics, dfs and similar, dp, trees	2400	x1243
1101F	Trucks and Cities binary search, dp	2400	x1252
1237E	Balanced Binary Search Trees dp, math	2400	x1259
1109D	Sasha and Interesting Fact from Graph Theory brute force, combinatorics, dp, math, trees	2400	x1264
698C	LRU bitmasks, dp, math, probabilities	2400	x1273
1304F2	Animal Observation (hard version) data structures, dp, greedy	2400	x1274
1770E	Koxia and Tree combinatorics, dfs and similar, dp, dsu, math, probabilities, trees	2400	x1291
1792E	Divisors and Table brute force, dfs and similar, dp, number theory	2400	x1300
825F	String Compression dp, hashing, string suffix structures, strings	2400	x1312
643C	Levels and Regions dp	2400	x1312
1598F	RBS binary search, bitmasks, brute force, data structures, dp	2400	x1319
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1320
1750E	Bracket Cost binary search, data structures, divide and conquer, dp, greedy, strings	2400	x1350
1059E	Split the Tree binary search, data structures, dp, greedy, trees	2400	x1351
1804E	Routing bitmasks, brute force, dfs and similar, dp, graphs	2400	x1354
115E	Linear Kingdom Races data structures, dp	2400	x1356
1096G	Lucky Tickets divide and conquer, dp, fft	2400	x1366
1819C	The Fox and the Complete Tree Traversal constructive algorithms, dp, implementation, math, trees	2400	x1385
1088E	Ehab and a component choosing problem dp, greedy, math, trees	2400	x1395
1499E	Chaotic Merge combinatorics, dp, math, strings	2400	x1405
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1437
1367F2	Flying Sort (Hard Version) binary search, data structures, dp, greedy, sortings, two pointers	2400	x1439
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1441
1743E	FTL binary search, dp	2400	x1462
1242C	Sum Balance bitmasks, dfs and similar, dp, graphs	2400	x1465
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1493
1630D	Flipping Range constructive algorithms, dp, greedy, number theory	2400	x1504
1715E	Long Way Home data structures, divide and conquer, dp, geometry, graphs, greedy, shortest paths	2400	x1594
1260E	Tournament brute force, dp, greedy	2400	x1600
1706D2	Chopping Carrots (Hard Version) brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers	2400	x1649
1582F2	Korney Korneevich and XOR (hard version) binary search, brute force, dp, greedy, two pointers	2400	x1709
990G	GCD Counting divide and conquer, dp, dsu, number theory, trees	2400	x1718
1720D2	Xor-Subsequence (hard version) bitmasks, data structures, dp, strings, trees	2400	x1723
1144G	Two Merged Sequences dp, greedy	2400	x1734
1827B2	Range Sorting (Hard Version) binary search, data structures, dp, greedy	2400	x1754
467D	Fedor and Essay dfs and similar, dp, graphs, hashing, strings	2400	x1761
24D	Broken robot dp, math, probabilities	2400	x1784
1609E	William The Oblivious bitmasks, data structures, dp, matrices	2400	x1835
1485F	Copy or Prefix Sum combinatorics, data structures, dp, sortings	2400	x1861
959F	Mahmoud and Ehab and yet another xor task bitmasks, dp, math, matrices	2400	x1936
1628D2	Game on Sum (Hard Version) combinatorics, dp, games, math	2400	x1969
1348E	Phoenix and Berries brute force, dp, greedy, math	2400	x1975
1340C	Nastya and Unexpected Guest dfs and similar, dp, graphs, shortest paths	2400	x2018
1523D	Love-Hate bitmasks, brute force, dp, probabilities	2400	x2075
1107E	Vasya and Binary String dp	2400	x2142
1428F	Fruit Sequences binary search, data structures, divide and conquer, dp, two pointers	2400	x2160
484D	Kindergarten data structures, dp, greedy	2400	x2408
815C	Karen and Supermarket brute force, dp, trees	2400	x2453
632E	Thief in a Shop divide and conquer, dp, fft, math	2400	x2543
626F	Group Projects dp	2400	x2664
932E	Team Work combinatorics, dp, math	2400	x2674
246E	Blood Cousins Return binary search, data structures, dfs and similar, dp, sortings	2400	x2945
311B	Cats Transport data structures, dp	2400	x3176
1083E	The Fair Nut and Rectangles data structures, dp, geometry	2400	x3774
449D	Jzzhu and Numbers bitmasks, combinatorics, dp	2400	x4051
774I	Composing Of String *special problem, dp	2300	x100
77D	Domino Carpet dp, implementation	2300	x309
838E	Convex Countour dp	2300	x322
518F	Pasha and Pipe binary search, brute force, combinatorics, dp, implementation	2300	x347
37D	Lesson Timetable combinatorics, dp, math	2300	x387
316D2	PE Lesson dp	2300	x415
856B	Similar Words dp, hashing, strings, trees	2300	x475
316D1	PE Lesson brute force, dp	2300	x477
873E	Awards For Contestants brute force, data structures, dp	2300	x487
268D	Wall Bars dp	2300	x492
1252B	Cleaning Robots dp, trees	2300	x501
89B	Widget Library dp, expression parsing, graphs, implementation	2300	x510
424D	Biathlon Track binary search, brute force, constructive algorithms, data structures, dp	2300	x554
677E	Vanya and Balloons binary search, brute force, dp, implementation	2300	x581
123C	Brackets combinatorics, dp, greedy	2300	x588
76F	Tourist binary search, data structures, dp	2300	x601
49E	Common ancestor dp	2300	x646
1866I	Imagination Castle dp, games, two pointers	2300	x666
101D	Castle dp, greedy, probabilities, sortings, trees	2300	x671
596D	Wilbur and Trees dp, math, probabilities, sortings	2300	x672
1070J	Streets and Avenues in Berhattan dp	2300	x678
1252J	Tiling Terrace brute force, dp	2300	x680
1250G	Discarding Game dp, greedy, two pointers	2300	x707
111D	Petya and Coloring combinatorics, dp	2300	x713
300D	Painting Square dp, fft	2300	x733
727F	Polycarp's problems binary search, dp, greedy	2300	x761
467E	Alex and Complicated Task data structures, dp, greedy	2300	x761
1425D	Danger of Mad Snakes combinatorics, dp, math	2300	x802
141E	Clearing Up constructive algorithms, dp, dsu, graphs	2300	x805
126D	Fibonacci Sums dp, math	2300	x805
1070G	Monsters and Potions brute force, dp, greedy, implementation	2300	x814