Problemset - Codeforces

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Codeforces Round (Div. 2)
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Problems

#	Name
2207F	Hanabi binary search, data structures, dp, dsu, flows, graph matchings, graphs, greedy	3000	x343
2196D	Double Bracket Sequence data structures, dp, expression parsing, flows, greedy, strings	2500	x1117
2147H	Maxflow GCD Coloring constructive algorithms, flows, graphs	3500	x569
2127H	23 Rises Again brute force, dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation, probabilities, trees	3100	x2819
2109F	Penguin Steps binary search, dfs and similar, flows, graphs, shortest paths	3000	x310
2097F	Lost Luggage dp, flows	3500	x213
2089B2	Canteen (Hard Version) binary search, data structures, dp, flows, greedy, two pointers	2300	x1366
2089B1	Canteen (Easy Version) binary search, data structures, flows, greedy, two pointers	1900	x3382
2068K	Amusement Park Rides flows, graphs	3000	x258
2062G	Permutation Factory flows, geometry, graph matchings, graphs	3500	x227
2061H2	Kevin and Stones (Hard Version) flows, graphs	3500	x85
2061H1	Kevin and Stones (Easy Version) flows, graph matchings, graphs	3500	x114
2046D	For the Emperor! flows, graphs	3100	x578
2043D	Problem about GCD brute force, flows, math, number theory	1800	x8049
2038H	Galactic Council flows	3000	x201
2029I	Variance Challenge flows, graphs, greedy	3400	x185
2026E	Best Subsequence bitmasks, dfs and similar, flows, graph matchings, graphs	2500	x2173
2025G	Variable Damage data structures, flows	3000	x241
2009F	Firefly's Queries bitmasks, data structures, flows, math	1700	x8806
1965F	Conference data structures, flows	3300	x303
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x1595
1951I	Growing Trees binary search, constructive algorithms, flows, graphs, greedy	3200	x120
1942H	Farmer John's Favorite Intern data structures, dp, flows, trees	3500	x275
1926G	Vlad and Trouble at MIT dfs and similar, dp, flows, graphs, greedy, implementation, trees	1900	x4814
1919F2	Wine Factory (Hard Version) data structures, dp, flows, greedy, matrices	2800	x1270
1913E	Matrix Problem flows, graphs	2400	x1401
1895G	Two Characters, Two Colors binary search, data structures, dp, flows, greedy	3100	x497
1866G	Grouped Carriages binary search, data structures, dp, flows, greedy	2100	x2329
1861F	Four Suits binary search, bitmasks, flows, greedy	3200	x358
1852F	Panda Meetups data structures, dp, flows	3500	x154
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x19886
1783F	Double Sort II dfs and similar, flows, graph matchings, graphs	2500	x1502
1773D	Dominoes combinatorics, flows, graph matchings, greedy	2600	x662
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x4531
1766F	MCF flows	2800	x442
1765A	Access Levels bitmasks, dsu, flows, graph matchings	2400	x902
1748E	Yet Another Array Counting Problem binary search, data structures, divide and conquer, dp, flows, math, trees	2300	x2983
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x126
1741G	Kirill and Company bitmasks, brute force, dfs and similar, dp, flows, graphs, shortest paths	2200	x2016
1728F	Fishermen flows, graph matchings, greedy	3100	x529
1721F	Matching Reduction brute force, constructive algorithms, dfs and similar, flows, graph matchings, graphs, interactive	2800	x701
1717F	Madoka and The First Session constructive algorithms, flows, graph matchings, graphs, implementation	2500	x800
1709F	Multiset of Strings bitmasks, brute force, dp, fft, flows, graphs, math, meet-in-the-middle, trees	2500	x733
1706C	Qpwoeirut And The City dp, flows, greedy, implementation	1400	x16399
1684G	Euclid Guess constructive algorithms, flows, graph matchings, math, number theory	2800	x893
1682F	MCMF? data structures, flows, graphs, greedy, sortings, two pointers	2700	x481
1666K	Kingdom Partition flows	3200	x370
1662J	Training Camp flows, graphs		x308
1630F	Making It Bipartite flows, graph matchings, graphs, number theory	3400	x1026
1624C	Division by Two and Permutation constructive algorithms, flows, graph matchings, greedy, math	1100	x27350
1615H	Reindeer Games binary search, constructive algorithms, data structures, divide and conquer, flows, graphs, shortest paths	3000	x490
1592F2	Alice and Recoloring 2 constructive algorithms, flows, graph matchings, greedy	2800	x1089
1572D	Bridge Club flows, graph matchings, graphs, greedy	2800	x734
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x27558
1533I	Excursions *special problem, constructive algorithms, dfs and similar, flows, graph matchings, graphs		x63
1530D	Secret Santa constructive algorithms, flows, graphs, greedy, math	1600	x10318
1525F	Goblins And Gnomes brute force, dp, flows, graph matchings	2800	x518
1525D	Armchairs dp, flows, graph matchings, greedy	1800	x11204
1519F	Chests and Keys bitmasks, brute force, dfs and similar, dp, flows	3200	x894
1517G	Starry Night Camping constructive algorithms, flows, graphs	3300	x776
1510B	Button Lock flows, graph matchings, graphs	2600	x995
1488I	Demonic Invasion *special problem, flows	3100	x51
1486E	Paired Payment binary search, brute force, constructive algorithms, dp, flows, graphs, shortest paths	2200	x3624
1473F	Strange Set flows, math	2700	x1272
1455E	Four Points brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search	2400	x1708
1438C	Engineer Artem 2-sat, chinese remainder theorem, constructive algorithms, fft, flows	2000	x12003
1437C	Chef Monocarp dp, flows, graph matchings, greedy, math, sortings	1800	x12757
1430G	Yet Another DAG Problem bitmasks, dfs and similar, dp, flows, graphs, math	2600	x977
1427G	One Billion Shades of Grey flows, graphs	3300	x521
1426E	Rock, Paper, Scissors brute force, constructive algorithms, flows, greedy, math	1800	x8302
1423B	Valuable Paper binary search, flows, graph matchings, graphs	1900	x2290
1416F	Showing Off flows, graph matchings, greedy, implementation	3300	x738
1408H	Rainbow Triples binary search, data structures, flows, greedy	3300	x583
1404E	Bricks flows, graph matchings, graphs	2800	x1858
1383F	Special Edges flows, graphs	3200	x462
1368H1	Breadboard Capacity (easy version) dp, flows, greedy	3300	x484
1354F	Summoning Minions constructive algorithms, dp, flows, graph matchings, greedy, sortings	2500	x1568
1307G	Cow and Exercise flows, graphs, shortest paths	3100	x794
1288F	Red-Blue Graph constructive algorithms, flows	2900	x780
1264E	Beautiful League constructive algorithms, flows, graph matchings	2700	x1014
1263F	Economic Difficulties data structures, dfs and similar, dp, flows, graphs, trees	2400	x990
1252L	Road Construction flows, graphs	2300	x680
1250K	Projectors flows, graphs	3100	x433
1214D	Treasure Island dfs and similar, dp, flows, hashing	1900	x7234
1198E	Rectangle Painting 2 flows, graph matchings, graphs	2500	x1367
1187G	Gang Up flows, graphs	2500	x737
1184B3	The Doctor Meets Vader (Hard) flows, shortest paths	2700	x313
1184B2	The Doctor Meets Vader (Medium) flows, graph matchings, graphs, shortest paths, sortings	2200	x719
1178H	Stock Exchange binary search, flows, graphs	3500	x300
1146G	Zoning Restrictions dp, flows, graphs	2700	x1150
1139E	Maximize Mex flows, graph matchings, graphs	2400	x2556
1119B	Alyona and a Narrow Fridge binary search, flows, greedy, sortings	1300	x18330
1107F	Vasya and Endless Credits dp, flows, graph matchings, graphs, sortings	2600	x1027
1090E	Horseback Riding flows, graphs	2300	x696
1082G	Petya and Graph flows, graphs	2400	x2942
1070I	Privatization of Roads in Berland flows, graph matchings, graphs	2400	x813
1061E	Politics flows, graphs	2600	x696
1054F	Electric Scheme flows, graph matchings	2700	x446
1045A	Last chance data structures, flows, graph matchings, graphs, trees	2500	x617
1034B	Little C Loves 3 II brute force, constructive algorithms, flows, graph matchings	2200	x2360

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