Problemset - Codeforces

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Problems

#	Name
1178H	Stock Exchange binary search, flows, graphs	3500	x63
1023G	Pisces data structures, flows, trees	3400	x41
793G	Oleg and chess data structures, divide and conquer, flows, graph matchings	3400	x164
1427G	One Billion Shades of Grey flows, graphs	3300	x75
1416F	Showing Off flows, graph matchings, greedy, implementation	3300	x85
1368H1	Breadboard Capacity (easy version) dp, flows, greedy	3300	x99
1408H	Rainbow Triples binary search, data structures, flows, greedy	3300	x116
1383F	Special Edges flows, graphs	3200	x92
786E	ALT data structures, flows, graphs, trees	3200	x287
611H	New Year and Forgotten Tree constructive algorithms, flows, graphs	3200	x301
925F	Parametric Circulation binary search, flows	3100	x64
1250K	Projectors flows, graphs	3100	x69
1307G	Cow and Exercise flows, graphs, shortest paths	3100	x200
704D	Captain America flows, greedy	3100	x375
457E	Flow Optimality constructive algorithms, flows, math	3000	x43
843E	Maximum Flow flows, graphs	3000	x86
212A	Privatization flows, graphs	3000	x100
223E	Planar Graph flows, geometry, graphs	3000	x115
739E	Gosha is hunting brute force, data structures, dp, flows, math, probabilities, sortings	3000	x914
126E	Pills brute force, flows	2900	x52
802O	April Fools' Problem (hard) binary search, data structures, flows	2900	x120
736E	Chess Championship constructive algorithms, flows, greedy, math	2900	x139
848D	Shake It! combinatorics, dp, flows, graphs	2900	x146
1288F	Red-Blue Graph constructive algorithms, flows	2900	x209
434D	Nanami's Power Plant flows	2900	x252
343E	Pumping Stations brute force, dfs and similar, divide and conquer, flows, graphs, greedy, trees	2900	x340
103E	Buying Sets flows, graph matchings	2900	x404
708D	Incorrect Flow flows	2900	x408
724E	Goods transportation dp, flows, greedy	2900	x698
513F2	Scaygerboss flows	2800	x205
1404E	Bricks flows, graph matchings, graphs	2800	x480
280D	k-Maximum Subsequence Sum data structures, flows, graphs, implementation	2800	x539
1184B3	The Doctor Meets Vader (Hard) flows, shortest paths	2700	x131
62E	World Evil dp, flows	2700	x146
513F1	Scaygerboss flows	2700	x199
1054F	Electric Scheme flows, graph matchings	2700	x208
903G	Yet Another Maxflow Problem data structures, flows, graphs	2700	x290
1264E	Beautiful League constructive algorithms, flows, graph matchings	2700	x292
132E	Bits of merry old England flows, graphs	2700	x334
1146G	Zoning Restrictions dp, flows, graphs	2700	x425
1473F	Strange Set flows, math	2700	x456
802C	Heidi and Library (hard) flows	2600	x276
818G	Four Melodies flows, graphs	2600	x280
1430G	Yet Another DAG Problem bitmasks, dfs and similar, dp, flows, graphs, math	2600	x304
1061E	Politics flows, graphs	2600	x322
1107F	Vasya and Endless Credits dp, flows, graph matchings, graphs, sortings	2600	x447
813D	Two Melodies dp, flows	2600	x582
1045A	Last chance data structures, flows, graph matchings, graphs, trees	2500	x191
1187G	Gang Up flows, graphs	2500	x283
976F	Minimal k-covering flows, graphs	2500	x350
628F	Bear and Fair Set flows	2500	x421
884F	Anti-Palindromize flows, graphs, greedy	2500	x516
1198E	Rectangle Painting 2 flows, graph matchings, graphs	2500	x609
1354F	Summoning Minions constructive algorithms, dp, flows, graph matchings, greedy, sortings	2500	x654
720B	Cactusophobia dfs and similar, flows	2400	x230
802N	April Fools' Problem (medium) binary search, flows, graphs	2400	x309
1070I	Privatization of Roads in Berland flows, graph matchings, graphs	2400	x369
847J	Students Initiation binary search, flows, graphs	2400	x453
1009G	Allowed Letters bitmasks, flows, graph matchings, graphs, greedy	2400	x470
717G	Underfail flows	2400	x476
808F	Card Game binary search, flows, graphs	2400	x530
1263F	Economic Difficulties data structures, dfs and similar, dp, flows, graphs, trees	2400	x579
164C	Machine Programming flows, graphs	2400	x637
277E	Binary Tree on Plane flows, trees	2400	x731
1139E	Maximize Mex flows, graph matchings, graphs	2400	x950
1082G	Petya and Graph flows, graphs	2400	x978
1455E	Four Points brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search	2400	x1016
491C	Deciphering flows, graph matchings	2300	x247
1090E	Horseback Riding flows, graphs	2300	x320
78E	Evacuation flows, graphs, shortest paths	2300	x355
1252L	Road Construction flows, graphs	2300	x422
316C2	Tidying Up flows, graph matchings	2300	x467
311E	Biologist flows	2300	x491
362E	Petya and Pipes flows, graphs, shortest paths	2300	x530
877F	Ann and Books data structures, flows, hashing	2300	x687
510E	Fox And Dinner flows	2300	x1603
1184B2	The Doctor Meets Vader (Medium) flows, graph matchings, graphs, shortest paths, sortings	2200	x423
316C1	Tidying Up flows	2200	x450
863F	Almost Permutation flows	2200	x770
723E	One-Way Reform constructive algorithms, dfs and similar, flows, graphs, greedy	2200	x1366
1486E	Paired Payment binary search, brute force, constructive algorithms, dp, flows, graphs, shortest paths	2200	x1599
653D	Delivery Bears binary search, flows, graphs	2200	x1627
1034B	Little C Loves 3 II brute force, constructive algorithms, flows, graph matchings	2200	x1699
852D	Exploration plan binary search, flows, graph matchings, shortest paths	2100	x603
269C	Flawed Flow constructive algorithms, flows, graphs, greedy	2100	x1343
498C	Array and Operations flows, graph matchings, number theory	2100	x2279
546E	Soldier and Traveling flows, graphs, math	2100	x2407
730I	Olympiad in Programming and Sports dp, flows, graphs, greedy	2000	x1026
237E	Build String flows, graphs	2000	x1148
899E	Segments Removal data structures, dsu, flows, implementation, two pointers	2000	x1713
1438C	Engineer Artem 2-sat, chinese remainder theorem, constructive algorithms, fft, flows	2000	x6653
1423B	Valuable Paper binary search, flows, graph matchings, graphs	1900	x1183
321B	Ciel and Duel dp, flows, greedy	1900	x2068
965D	Single-use Stones binary search, flows, greedy, two pointers	1900	x2259
1214D	Treasure Island dfs and similar, dp, flows, hashing	1900	x3832
727D	T-shirts Distribution constructive algorithms, flows, greedy	1800	x1396
1016D	Vasya And The Matrix constructive algorithms, flows, math	1800	x3562
1426E	Rock, Paper, Scissors brute force, constructive algorithms, flows, greedy, math	1800	x5034
1437C	Chef Monocarp dp, flows, graph matchings, greedy, math, sortings	1800	x6443
1119B	Alyona and a Narrow Fridge binary search, flows, greedy, sortings	1300	x7232