Problemset - Codeforces

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Codeforces Round #678 (Div. 2)
26:16:59
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Problems

#	Name
1430G	Yet Another DAG Problem bitmasks, dfs and similar, dp, flows, graphs, math	2600	x209
1427G	One Billion Shades of Grey flows, graphs	3300	x52
1423B	Valuable Paper binary search, flows, graph matchings, graphs	1900	x998
1408H	Rainbow Triples binary search, data structures, flows, greedy	3300	x94
1426E	Rock, Paper, Scissors brute force, constructive algorithms, flows, greedy, math	1800	x4292
1416F	Showing Off flows, graph matchings, greedy, implementation	3300	x64
1404E	Bricks flows, graph matchings, graphs	2800	x381
1383F	Special Edges flows, graphs	3200	x56
1368H1	Breadboard Capacity (easy version) dp, flows, greedy	3300	x76
1354F	Summoning Minions constructive algorithms, dp, flows, graph matchings, greedy, sortings	2500	x600
1307G	Cow and Exercise flows, graphs, shortest paths	3100	x159
1288F	Red-Blue Graph constructive algorithms, flows	2900	x191
1264E	Beautiful League constructive algorithms, flows, graph matchings	2700	x269
1263F	Economic Difficulties data structures, dfs and similar, dp, flows, graphs, trees	2400	x551
1250K	Projectors flows, graphs	3100	x69
1252L	Road Construction flows, graphs	2300	x406
1214D	Treasure Island dfs and similar, dp, flows, hashing	1900	x3666
1198E	Rectangle Painting 2 flows, graph matchings, graphs	2500	x586
1178H	Stock Exchange binary search, flows, graphs	3500	x55
1184B3	The Doctor Meets Vader (Hard) flows, shortest paths	2700	x127
1184B2	The Doctor Meets Vader (Medium) flows, graph matchings, graphs, shortest paths, sortings	2200	x413
1187G	Gang Up flows, graphs	2500	x264
1146G	Zoning Restrictions dp, flows, graphs	2700	x415
1119B	Alyona and a Narrow Fridge binary search, flows, greedy, sortings	1300	x6949
1139E	Maximize Mex flows, graph matchings, graphs	2400	x890
1107F	Vasya and Endless Credits dp, flows, graph matchings, graphs, sortings	2600	x417
1090E	Horseback Riding flows, graphs	2300	x314
1061E	Politics flows, graphs	2600	x302
1070I	Privatization of Roads in Berland flows, graph matchings, graphs	2400	x352
1054F	Electric Scheme flows, graph matchings	2700	x198
1045A	Last chance data structures, flows, graph matchings, graphs, trees	2500	x186
1034B	Little C Loves 3 II brute force, constructive algorithms, flows, graph matchings	2200	x1644
1023G	Pisces data structures, flows, trees	3400	x36
1016D	Vasya And The Matrix constructive algorithms, flows, math	1800	x3402
1009G	Allowed Letters bitmasks, flows, graph matchings, graphs, greedy	2400	x433
976F	Minimal k-covering flows, graphs	2500	x318
925F	Parametric Circulation binary search, flows	3100	x54
965D	Single-use Stones binary search, flows, greedy, two pointers	1900	x2176
899E	Segments Removal data structures, dsu, flows, implementation, two pointers	2000	x1593
903G	Yet Another Maxflow Problem data structures, flows, graphs	2700	x280
884F	Anti-Palindromize flows, graphs, greedy	2500	x479
877F	Ann and Books data structures, flows, hashing	2300	x622
863F	Almost Permutation flows	2200	x720
847J	Students Initiation binary search, flows, graphs	2400	x438
852D	Exploration plan binary search, flows, graph matchings, shortest paths	2100	x563
848D	Shake It! combinatorics, dp, flows, graphs	2900	x141
843E	Maximum Flow flows, graphs	3000	x85
818G	Four Melodies flows, graphs	2600	x250
813D	Two Melodies dp, flows	2600	x548
802O	April Fools' Problem (hard) binary search, data structures, flows	2900	x99
802N	April Fools' Problem (medium) binary search, flows, graphs	2400	x278
802C	Heidi and Library (hard) flows	2600	x262
808F	Card Game binary search, flows, graphs	2400	x484
793G	Oleg and chess data structures, divide and conquer, flows, graph matchings	3400	x147
786E	ALT data structures, flows, graphs, trees	3200	x254
736E	Chess Championship constructive algorithms, flows, greedy, math	2900	x138
739E	Gosha is hunting brute force, data structures, dp, flows, math, probabilities, sortings	3000	x803
730I	Olympiad in Programming and Sports dp, flows, graphs, greedy	2000	x987
727D	T-shirts Distribution constructive algorithms, flows, greedy	1800	x1361
724E	Goods transportation dp, flows, greedy	2900	x664
723E	One-Way Reform constructive algorithms, dfs and similar, flows, graphs, greedy	2200	x1317
720B	Cactusophobia dfs and similar, flows	2400	x219
717G	Underfail flows	2400	x461
708D	Incorrect Flow flows	2900	x378
704D	Captain America flows, greedy	3100	x340
1082G	Petya and Graph flows, graphs	2400	x876
653D	Delivery Bears binary search, flows, graphs	2200	x1534
628F	Bear and Fair Set flows	2500	x390
611H	New Year and Forgotten Tree constructive algorithms, flows, graphs	3200	x274
546E	Soldier and Traveling flows, graphs, math	2100	x2299
513F2	Scaygerboss flows	2800	x204
513F1	Scaygerboss flows	2700	x198
510E	Fox And Dinner flows	2300	x1554
498C	Array and Operations flows, graph matchings, number theory	2100	x2163
491C	Deciphering flows, graph matchings	2300	x239
457E	Flow Optimality constructive algorithms, flows, math	3000	x37
434D	Nanami's Power Plant flows	2900	x238
362E	Petya and Pipes flows, graphs, shortest paths	2300	x506
343E	Pumping Stations brute force, dfs and similar, divide and conquer, flows, graphs, greedy, trees	2900	x313
321B	Ciel and Duel dp, flows, greedy	1900	x1990
316C2	Tidying Up flows, graph matchings	2300	x457
316C1	Tidying Up flows	2200	x443
311E	Biologist flows	2300	x436
280D	k-Maximum Subsequence Sum data structures, flows, graphs, implementation	2800	x516
277E	Binary Tree on Plane flows, trees	2400	x687
269C	Flawed Flow constructive algorithms, flows, graphs, greedy	2100	x1317
237E	Build String flows, graphs	2000	x1115
223E	Planar Graph flows, geometry, graphs	3000	x107
212A	Privatization flows, graphs	3000	x98
164C	Machine Programming flows, graphs	2400	x610
132E	Bits of merry old England flows, graphs	2700	x321
126E	Pills brute force, flows	2900	x52
103E	Buying Sets flows, graph matchings	2900	x358
78E	Evacuation flows, graphs, shortest paths	2300	x340
62E	World Evil dp, flows	2700	x136