Problemset - Codeforces

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Codeforces Round 945 (Div. 2)
3 days
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Problems

#	Name
1942H	Farmer John's Favorite Intern data structures, dp, flows, trees	3500	x59
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x88
1852F	Panda Meetups data structures, dp, flows	3500	x99
1178H	Stock Exchange binary search, flows, graphs	3500	x218
1023G	Pisces data structures, flows, trees	3400	x113
793G	Oleg and chess data structures, divide and conquer, flows, graph matchings	3400	x358
1630F	Making It Bipartite flows, graph matchings, graphs, number theory	3400	x508
1965F	Conference data structures, flows	3300	x72
1427G	One Billion Shades of Grey flows, graphs	3300	x257
1368H1	Breadboard Capacity (easy version) dp, flows, greedy	3300	x330
1408H	Rainbow Triples binary search, data structures, flows, greedy	3300	x352
1416F	Showing Off flows, graph matchings, greedy, implementation	3300	x373
1517G	Starry Night Camping constructive algorithms, flows, graphs	3300	x412
1951I	Growing Trees binary search, constructive algorithms, flows, graphs, greedy	3200	x45
1861F	Four Suits binary search, bitmasks, flows, greedy	3200	x146
1666K	Kingdom Partition flows	3200	x185
1383F	Special Edges flows, graphs	3200	x321
1519F	Chests and Keys bitmasks, brute force, dfs and similar, dp, flows	3200	x388
611H	New Year and Forgotten Tree constructive algorithms, flows, graphs	3200	x577
786E	ALT data structures, flows, graphs, trees	3200	x602
1488I	Demonic Invasion *special problem, flows	3100	x33
925F	Parametric Circulation binary search, flows	3100	x94
1250K	Projectors flows, graphs	3100	x152
1895G	Two Characters, Two Colors binary search, data structures, dp, flows, greedy	3100	x172
1728F	Fishermen flows, graph matchings, greedy	3100	x407
1307G	Cow and Exercise flows, graphs, shortest paths	3100	x479
704D	Captain America flows, greedy	3100	x776
457E	Flow Optimality constructive algorithms, flows, math	3000	x81
212A	Privatization flows, graphs	3000	x187
223E	Planar Graph flows, geometry, graphs	3000	x188
843E	Maximum Flow flows, graphs	3000	x282
1615H	Reindeer Games binary search, constructive algorithms, data structures, divide and conquer, flows, graphs, shortest paths	3000	x308
739E	Gosha is hunting brute force, data structures, dp, flows, math, probabilities, sortings	3000	x2053
126E	Pills brute force, flows	2900	x82
736E	Chess Championship constructive algorithms, flows, greedy, math	2900	x182
848D	Shake It! combinatorics, dp, flows, graphs	2900	x365
434D	Nanami's Power Plant flows	2900	x398
1288F	Red-Blue Graph constructive algorithms, flows	2900	x444
343E	Pumping Stations brute force, dfs and similar, divide and conquer, flows, graphs, greedy, trees	2900	x686
708D	Incorrect Flow flows	2900	x698
103E	Buying Sets flows, graph matchings	2900	x817
802O	April Fools' Problem (hard) binary search, data structures, flows	2900	x827
724E	Goods transportation dp, flows, greedy	2900	x1232
1766F	MCF flows	2800	x257
513F2	Scaygerboss flows	2800	x313
1525F	Goblins And Gnomes brute force, dp, flows, graph matchings	2800	x317
1721F	Matching Reduction brute force, constructive algorithms, dfs and similar, flows, graph matchings, graphs, interactive	2800	x364
1572D	Bridge Club flows, graph matchings, graphs, greedy	2800	x471
1684G	Euclid Guess constructive algorithms, flows, graph matchings, math, number theory	2800	x579
1592F2	Alice and Recoloring 2 constructive algorithms, flows, graph matchings, greedy	2800	x663
1919F2	Wine Factory (Hard Version) data structures, dp, flows, greedy, matrices	2800	x741
1404E	Bricks flows, graph matchings, graphs	2800	x1094
280D	k-Maximum Subsequence Sum data structures, flows, graphs, implementation	2800	x1190
1184B3	The Doctor Meets Vader (Hard) flows, shortest paths	2700	x166
62E	World Evil dp, flows	2700	x218
1682F	MCMF? data structures, flows, graphs, greedy, sortings, two pointers	2700	x285
513F1	Scaygerboss flows	2700	x296
1054F	Electric Scheme flows, graph matchings	2700	x306
903G	Yet Another Maxflow Problem data structures, flows, graphs	2700	x509
132E	Bits of merry old England flows, graphs	2700	x521
1264E	Beautiful League constructive algorithms, flows, graph matchings	2700	x749
1146G	Zoning Restrictions dp, flows, graphs	2700	x794
1473F	Strange Set flows, math	2700	x916
1773D	Dominoes combinatorics, flows, graph matchings, greedy	2600	x422
1061E	Politics flows, graphs	2600	x511
802C	Heidi and Library (hard) flows	2600	x529
818G	Four Melodies flows, graphs	2600	x625
1430G	Yet Another DAG Problem bitmasks, dfs and similar, dp, flows, graphs, math	2600	x626
1510B	Button Lock flows, graph matchings, graphs	2600	x712
1107F	Vasya and Endless Credits dp, flows, graph matchings, graphs, sortings	2600	x725
813D	Two Melodies dp, flows	2600	x965
1045A	Last chance data structures, flows, graph matchings, graphs, trees	2500	x320
1187G	Gang Up flows, graphs	2500	x499
1717F	Madoka and The First Session constructive algorithms, flows, graph matchings, graphs, implementation	2500	x511
1709F	Multiset of Strings bitmasks, brute force, dp, fft, flows, graphs, math, meet-in-the-middle, trees	2500	x535
976F	Minimal k-covering flows, graphs	2500	x561
628F	Bear and Fair Set flows, graphs	2500	x735
884F	Anti-Palindromize flows, graphs, greedy	2500	x936
1783F	Double Sort II dfs and similar, flows, graph matchings, graphs	2500	x967
1354F	Summoning Minions constructive algorithms, dp, flows, graph matchings, greedy, sortings	2500	x981
1198E	Rectangle Painting 2 flows, graph matchings, graphs	2500	x1151
720B	Cactusophobia dfs and similar, flows	2400	x392
1070I	Privatization of Roads in Berland flows, graph matchings, graphs	2400	x532
847J	Students Initiation binary search, flows, graphs	2400	x615
717G	Underfail flows	2400	x621
1765A	Access Levels bitmasks, dsu, flows, graph matchings	2400	x666
1009G	Allowed Letters bitmasks, flows, graph matchings, graphs, greedy	2400	x770
1263F	Economic Difficulties data structures, dfs and similar, dp, flows, graphs, trees	2400	x838
164C	Machine Programming flows, graphs	2400	x875
1913E	Matrix Problem flows, graphs	2400	x908
808F	Card Game binary search, flows, graphs	2400	x1092
802N	April Fools' Problem (medium) binary search, flows, graphs	2400	x1100
277E	Binary Tree on Plane flows, trees	2400	x1235
1455E	Four Points brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search	2400	x1435
1139E	Maximize Mex flows, graph matchings, graphs	2400	x1660
1082G	Petya and Graph flows, graphs	2400	x1946
491C	Deciphering flows, graph matchings	2300	x401
78E	Evacuation flows, graphs, shortest paths	2300	x528
1252L	Road Construction flows, graphs	2300	x567
1090E	Horseback Riding flows, graphs	2300	x573

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