Problemset - Codeforces

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Codeforces Global Round 26
21:19:18
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Problems

#	Name
1965F	Conference data structures, flows	3300	x109
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x1087
1951I	Growing Trees binary search, constructive algorithms, flows, graphs, greedy	3200	x65
1942H	Farmer John's Favorite Intern data structures, dp, flows, trees	3500	x70
1926G	Vlad and Trouble at MIT dfs and similar, dp, flows, graphs, greedy, implementation, trees	1900	x3078
1919F2	Wine Factory (Hard Version) data structures, dp, flows, greedy, matrices	2800	x752
1913E	Matrix Problem flows, graphs	2400	x934
1895G	Two Characters, Two Colors binary search, data structures, dp, flows, greedy	3100	x179
1866G	Grouped Carriages binary search, data structures, dp, flows, greedy	2100	x1537
1861F	Four Suits binary search, bitmasks, flows, greedy	3200	x149
1852F	Panda Meetups data structures, dp, flows	3500	x101
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x17043
1783F	Double Sort II dfs and similar, flows, graph matchings, graphs	2500	x978
1773D	Dominoes combinatorics, flows, graph matchings, greedy	2600	x430
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x3696
1766F	MCF flows	2800	x262
1765A	Access Levels bitmasks, dsu, flows, graph matchings	2400	x669
1748E	Yet Another Array Counting Problem binary search, data structures, divide and conquer, dp, flows, math, trees	2300	x1748
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x90
1741G	Kirill and Company bitmasks, brute force, dfs and similar, dp, flows, graphs, shortest paths	2200	x1438
1728F	Fishermen flows, graph matchings, greedy	3100	x413
1721F	Matching Reduction brute force, constructive algorithms, dfs and similar, flows, graph matchings, graphs, interactive	2800	x372
1717F	Madoka and The First Session constructive algorithms, flows, graph matchings, graphs, implementation	2500	x517
1709F	Multiset of Strings bitmasks, brute force, dp, fft, flows, graphs, math, meet-in-the-middle, trees	2500	x537
1706C	Qpwoeirut And The City dp, flows, greedy, implementation	1400	x14514
1684G	Euclid Guess constructive algorithms, flows, graph matchings, math, number theory	2800	x583
1682F	MCMF? data structures, flows, graphs, greedy, sortings, two pointers	2700	x289
1666K	Kingdom Partition flows	3200	x231
1662J	Training Camp flows, graphs		x219
1630F	Making It Bipartite flows, graph matchings, graphs, number theory	3400	x526
1624C	Division by Two and Permutation constructive algorithms, flows, graph matchings, greedy, math	1100	x24181
1615H	Reindeer Games binary search, constructive algorithms, data structures, divide and conquer, flows, graphs, shortest paths	3000	x311
1592F2	Alice and Recoloring 2 constructive algorithms, flows, graph matchings, greedy	2800	x678
1572D	Bridge Club flows, graph matchings, graphs, greedy	2800	x475
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x23895
1533I	Excursions *special problem, constructive algorithms, dfs and similar, flows, graph matchings, graphs		x49
1530D	Secret Santa constructive algorithms, flows, graphs, greedy, math	1600	x8943
1525F	Goblins And Gnomes brute force, dp, flows, graph matchings	2800	x319
1525D	Armchairs dp, flows, graph matchings, greedy	1800	x9443
1519F	Chests and Keys bitmasks, brute force, dfs and similar, dp, flows	3200	x392
1517G	Starry Night Camping constructive algorithms, flows, graphs	3300	x420
1510B	Button Lock flows, graph matchings, graphs	2600	x719
1488I	Demonic Invasion *special problem, flows	3100	x34
1486E	Paired Payment binary search, brute force, constructive algorithms, dp, flows, graphs, shortest paths	2200	x2813
1473F	Strange Set flows, math	2700	x919
1455E	Four Points brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search	2400	x1439
1438C	Engineer Artem 2-sat, chinese remainder theorem, constructive algorithms, fft, flows	2000	x10227
1437C	Chef Monocarp dp, flows, graph matchings, greedy, math, sortings	1800	x10173
1430G	Yet Another DAG Problem bitmasks, dfs and similar, dp, flows, graphs, math	2600	x635
1427G	One Billion Shades of Grey flows, graphs	3300	x263
1426E	Rock, Paper, Scissors brute force, constructive algorithms, flows, greedy, math	1800	x7262
1423B	Valuable Paper binary search, flows, graph matchings, graphs	1900	x1776
1416F	Showing Off flows, graph matchings, greedy, implementation	3300	x388
1408H	Rainbow Triples binary search, data structures, flows, greedy	3300	x355
1404E	Bricks flows, graph matchings, graphs	2800	x1101
1383F	Special Edges flows, graphs	3200	x326
1368H1	Breadboard Capacity (easy version) dp, flows, greedy	3300	x340
1354F	Summoning Minions constructive algorithms, dp, flows, graph matchings, greedy, sortings	2500	x1036
1307G	Cow and Exercise flows, graphs, shortest paths	3100	x481
1288F	Red-Blue Graph constructive algorithms, flows	2900	x450
1264E	Beautiful League constructive algorithms, flows, graph matchings	2700	x757
1263F	Economic Difficulties data structures, dfs and similar, dp, flows, graphs, trees	2400	x847
1252L	Road Construction flows, graphs	2300	x572
1250K	Projectors flows, graphs	3100	x163
1214D	Treasure Island dfs and similar, dp, flows, hashing	1900	x5099
1198E	Rectangle Painting 2 flows, graph matchings, graphs	2500	x1156
1187G	Gang Up flows, graphs	2500	x500
1184B3	The Doctor Meets Vader (Hard) flows, shortest paths	2700	x169
1184B2	The Doctor Meets Vader (Medium) flows, graph matchings, graphs, shortest paths, sortings	2200	x569
1178H	Stock Exchange binary search, flows, graphs	3500	x223
1146G	Zoning Restrictions dp, flows, graphs	2700	x797
1139E	Maximize Mex flows, graph matchings, graphs	2400	x1686
1119B	Alyona and a Narrow Fridge binary search, flows, greedy, sortings	1300	x10030
1107F	Vasya and Endless Credits dp, flows, graph matchings, graphs, sortings	2600	x733
1090E	Horseback Riding flows, graphs	2300	x577
1082G	Petya and Graph flows, graphs	2400	x1962
1070I	Privatization of Roads in Berland flows, graph matchings, graphs	2400	x536
1061E	Politics flows, graphs	2600	x518
1054F	Electric Scheme flows, graph matchings	2700	x308
1045A	Last chance data structures, flows, graph matchings, graphs, trees	2500	x323
1034B	Little C Loves 3 II brute force, constructive algorithms, flows, graph matchings	2200	x2086
1023G	Pisces data structures, flows, trees	3400	x114
1016D	Vasya And The Matrix constructive algorithms, flows, math	1800	x4494
1009G	Allowed Letters bitmasks, flows, graph matchings, graphs, greedy	2400	x776
976F	Minimal k-covering flows, graphs	2500	x562
965D	Single-use Stones binary search, flows, greedy, two pointers	1900	x3032
925F	Parametric Circulation binary search, flows	3100	x103
903G	Yet Another Maxflow Problem data structures, flows, graphs	2700	x513
899E	Segments Removal data structures, dsu, flows, implementation, two pointers	2000	x2769
884F	Anti-Palindromize flows, graphs, greedy	2500	x963
877F	Ann and Books data structures, flows, hashing	2300	x1656
863F	Almost Permutation flows	2200	x1193
852D	Exploration plan binary search, flows, graph matchings, shortest paths	2100	x959
848D	Shake It! combinatorics, dp, flows, graphs	2900	x369
847J	Students Initiation binary search, flows, graphs	2400	x617
843E	Maximum Flow flows, graphs	3000	x287
818G	Four Melodies flows, graphs	2600	x636
813D	Two Melodies dp, flows	2600	x973
808F	Card Game binary search, flows, graphs	2400	x1104
802O	April Fools' Problem (hard) binary search, data structures, flows	2900	x851

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