Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round #850 (Div. 1, based on VK Cup 2022 - Final Round)
23:15:00
Register now »

*has extra registration

Before contest
Codeforces Round #850 (Div. 2, based on VK Cup 2022 - Final Round)
23:15:00
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

flows

Add tag

Problems

#	Name
1783F	Double Sort II dfs and similar, flows, graph matchings, graphs	2500	x570
1773D	Dominoes combinatorics, flows, graph matchings, greedy	2600	x250
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x2907
1766F	MCF flows	2800	x155
1765A	Access Levels bitmasks, dsu, flows, graph matchings	2400	x473
1748E	Yet Another Array Counting Problem binary search, data structures, divide and conquer, dp, flows, math, trees	2300	x1243
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x67
1741G	Kirill and Company bitmasks, brute force, dfs and similar, dp, flows, graphs, shortest paths	2200	x1069
1728F	Fishermen flows, graph matchings, greedy	3100	x218
1721F	Matching Reduction brute force, constructive algorithms, dfs and similar, flows, graph matchings, graphs, interactive	2800	x273
1717F	Madoka and The First Session constructive algorithms, flows, graph matchings, graphs, implementation	2500	x402
1709F	Multiset of Strings bitmasks, brute force, dp, fft, flows, graphs, math, meet-in-the-middle, trees	2500	x445
1706C	Qpwoeirut And The City dp, flows, greedy, implementation	1400	x12246
1684G	Euclid Guess constructive algorithms, flows, graph matchings, math, number theory	2800	x446
1682F	MCMF? data structures, flows, graphs, greedy, sortings, two pointers	2700	x223
1666K	Kingdom Partition flows	3200	x89
1662J	Training Camp flows, graphs		x50
1630F	Making It Bipartite flows, graph matchings, graphs, number theory	3400	x301
1624C	Division by Two and Permutation constructive algorithms, flows, graph matchings, greedy, math	1100	x20953
1615H	Reindeer Games binary search, constructive algorithms, data structures, divide and conquer, flows, graphs, shortest paths	3000	x209
1592F2	Alice and Recoloring 2 constructive algorithms, flows, graph matchings, greedy	2800	x370
1572D	Bridge Club flows, graph matchings, graphs, greedy	2800	x283
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x21378
1533I	Excursions *special problem, constructive algorithms, dfs and similar, flows, graph matchings, graphs		x39
1530D	Secret Santa constructive algorithms, flows, graphs, greedy, math	1600	x7995
1525F	Goblins And Gnomes brute force, dp, flows, graph matchings	2800	x238
1525D	Armchairs dp, flows, graph matchings, greedy	1800	x7859
1519F	Chests and Keys bitmasks, brute force, dfs and similar, dp, flows	3200	x214
1517G	Starry Night Camping constructive algorithms, flows, graphs	3300	x328
1510B	Button Lock flows, graph matchings, graphs	2600	x598
1488I	Demonic Invasion *special problem, flows	3100	x23
1486E	Paired Payment binary search, brute force, constructive algorithms, dp, flows, graphs, shortest paths	2200	x2494
1473F	Strange Set flows, math	2700	x740
1455E	Four Points brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search	2400	x1310
1438C	Engineer Artem 2-sat, chinese remainder theorem, constructive algorithms, fft, flows	2000	x9036
1437C	Chef Monocarp dp, flows, graph matchings, greedy, math, sortings	1800	x8883
1430G	Yet Another DAG Problem bitmasks, dfs and similar, dp, flows, graphs, math	2600	x477
1427G	One Billion Shades of Grey flows, graphs	3300	x155
1426E	Rock, Paper, Scissors brute force, constructive algorithms, flows, greedy, math	1800	x6541
1423B	Valuable Paper binary search, flows, graph matchings, graphs	1900	x1578
1416F	Showing Off flows, graph matchings, greedy, implementation	3300	x188
1408H	Rainbow Triples binary search, data structures, flows, greedy	3300	x225
1404E	Bricks flows, graph matchings, graphs	2800	x836
1383F	Special Edges flows, graphs	3200	x165
1368H1	Breadboard Capacity (easy version) dp, flows, greedy	3300	x206
1354F	Summoning Minions constructive algorithms, dp, flows, graph matchings, greedy, sortings	2500	x878
1307G	Cow and Exercise flows, graphs, shortest paths	3100	x350
1288F	Red-Blue Graph constructive algorithms, flows	2900	x344
1264E	Beautiful League constructive algorithms, flows, graph matchings	2700	x511
1263F	Economic Difficulties data structures, dfs and similar, dp, flows, graphs, trees	2400	x725
1252L	Road Construction flows, graphs	2300	x511
1250K	Projectors flows, graphs	3100	x88
1214D	Treasure Island dfs and similar, dp, flows, hashing	1900	x4543
1198E	Rectangle Painting 2 flows, graph matchings, graphs	2500	x793
1187G	Gang Up flows, graphs	2500	x404
1184B3	The Doctor Meets Vader (Hard) flows, shortest paths	2700	x148
1184B2	The Doctor Meets Vader (Medium) flows, graph matchings, graphs, shortest paths, sortings	2200	x487
1178H	Stock Exchange binary search, flows, graphs	3500	x123
1146G	Zoning Restrictions dp, flows, graphs	2700	x645
1139E	Maximize Mex flows, graph matchings, graphs	2400	x1261
1119B	Alyona and a Narrow Fridge binary search, flows, greedy, sortings	1300	x8818
1107F	Vasya and Endless Credits dp, flows, graph matchings, graphs, sortings	2600	x628
1090E	Horseback Riding flows, graphs	2300	x506
1082G	Petya and Graph flows, graphs	2400	x1515
1070I	Privatization of Roads in Berland flows, graph matchings, graphs	2400	x488
1061E	Politics flows, graphs	2600	x437
1054F	Electric Scheme flows, graph matchings	2700	x275
1045A	Last chance data structures, flows, graph matchings, graphs, trees	2500	x257
1034B	Little C Loves 3 II brute force, constructive algorithms, flows, graph matchings	2200	x1955
1023G	Pisces data structures, flows, trees	3400	x75
1016D	Vasya And The Matrix constructive algorithms, flows, math	1800	x4149
1009G	Allowed Letters bitmasks, flows, graph matchings, graphs, greedy	2400	x636
976F	Minimal k-covering flows, graphs	2500	x499
965D	Single-use Stones binary search, flows, greedy, two pointers	1900	x2681
925F	Parametric Circulation binary search, flows	3100	x77
903G	Yet Another Maxflow Problem data structures, flows, graphs	2700	x404
899E	Segments Removal data structures, dsu, flows, implementation, two pointers	2000	x2381
884F	Anti-Palindromize flows, graphs, greedy	2500	x726
877F	Ann and Books data structures, flows, hashing	2300	x1175
863F	Almost Permutation flows	2200	x1017
852D	Exploration plan binary search, flows, graph matchings, shortest paths	2100	x773
848D	Shake It! combinatorics, dp, flows, graphs	2900	x281
847J	Students Initiation binary search, flows, graphs	2400	x553
843E	Maximum Flow flows, graphs	3000	x130
818G	Four Melodies flows, graphs	2600	x475
813D	Two Melodies dp, flows	2600	x792
808F	Card Game binary search, flows, graphs	2400	x811
802O	April Fools' Problem (hard) binary search, data structures, flows	2900	x485
802N	April Fools' Problem (medium) binary search, flows, graphs	2400	x767
802C	Heidi and Library (hard) flows	2600	x433
793G	Oleg and chess data structures, divide and conquer, flows, graph matchings	3400	x234
786E	ALT data structures, flows, graphs, trees	3200	x449
739E	Gosha is hunting brute force, data structures, dp, flows, math, probabilities, sortings	3000	x1584
736E	Chess Championship constructive algorithms, flows, greedy, math	2900	x159
730I	Olympiad in Programming and Sports dp, flows, graphs, greedy	2000	x1445
727D	T-shirts Distribution constructive algorithms, flows, greedy	1800	x1668
724E	Goods transportation dp, flows, greedy	2900	x1023
723E	One-Way Reform constructive algorithms, dfs and similar, flows, graphs, greedy	2200	x1693
720B	Cactusophobia dfs and similar, flows	2400	x329
717G	Underfail flows	2400	x554

←