Problemset - Codeforces

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Codeforces Round #671 (Div. 2)
27:02:38
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Problems

#	Name
1178H	Stock Exchange binary search, flows, graphs	3500	x52
1023G	Pisces data structures, flows, trees	3400	x34
793G	Oleg and chess data structures, divide and conquer, flows, graph matchings	3400	x143
1368H1	Breadboard Capacity (easy version) dp, flows, greedy	3300	x67
1383F	Special Edges flows, graphs	3200	x54
786E	ALT data structures, flows, graphs, trees	3200	x238
611H	New Year and Forgotten Tree constructive algorithms, flows, graphs	3200	x262
925F	Parametric Circulation binary search, flows	3100	x54
1250K	Projectors flows, graphs	3100	x67
1307G	Cow and Exercise flows, graphs, shortest paths	3100	x155
704D	Captain America flows, greedy	3100	x338
457E	Flow Optimality constructive algorithms, flows, math	3000	x36
843E	Maximum Flow flows, graphs	3000	x85
212A	Privatization flows, graphs	3000	x98
223E	Planar Graph flows, geometry, graphs	3000	x105
739E	Gosha is hunting brute force, data structures, dp, flows, math, probabilities, sortings	3000	x783
126E	Pills brute force, flows	2900	x52
802O	April Fools' Problem (hard) binary search, data structures, flows	2900	x99
736E	Chess Championship constructive algorithms, flows, greedy, math	2900	x137
848D	Shake It! combinatorics, dp, flows, graphs	2900	x139
1288F	Red-Blue Graph constructive algorithms, flows	2900	x188
434D	Nanami's Power Plant flows	2900	x237
343E	Pumping Stations brute force, dfs and similar, divide and conquer, flows, graphs, greedy, trees	2900	x305
103E	Buying Sets flows, graph matchings	2900	x342
708D	Incorrect Flow flows	2900	x368
724E	Goods transportation dp, flows, greedy	2900	x655
513F2	Scaygerboss flows	2800	x199
1404E	Bricks flows, graph matchings, graphs	2800	x319
280D	k-Maximum Subsequence Sum data structures, flows, graphs, implementation	2800	x511
1184B3	The Doctor Meets Vader (Hard) flows, shortest paths	2700	x127
62E	World Evil dp, flows	2700	x136
513F1	Scaygerboss flows	2700	x193
1054F	Electric Scheme flows, graph matchings	2700	x194
1264E	Beautiful League constructive algorithms, flows, graph matchings	2700	x266
903G	Yet Another Maxflow Problem data structures, flows, graphs	2700	x275
132E	Bits of merry old England flows, graphs	2700	x320
1146G	Zoning Restrictions dp, flows, graphs	2700	x399
818G	Four Melodies flows, graphs	2600	x239
802C	Heidi and Library (hard) flows	2600	x256
1061E	Politics flows, graphs	2600	x296
1107F	Vasya and Endless Credits dp, flows, graph matchings, graphs, sortings	2600	x410
813D	Two Melodies dp, flows	2600	x539
1045A	Last chance data structures, flows, graph matchings, graphs, trees	2500	x184
1187G	Gang Up flows, graphs	2500	x259
976F	Minimal k-covering flows, graphs	2500	x312
628F	Bear and Fair Set flows	2500	x387
884F	Anti-Palindromize flows, graphs, greedy	2500	x471
1198E	Rectangle Painting 2 flows, graph matchings, graphs	2500	x574
1354F	Summoning Minions constructive algorithms, dp, flows, graph matchings, greedy, sortings	2500	x581
720B	Cactusophobia dfs and similar, flows	2400	x215
802N	April Fools' Problem (medium) binary search, flows, graphs	2400	x274
1070I	Privatization of Roads in Berland flows, graphs	2400	x345
1009G	Allowed Letters bitmasks, flows, graph matchings, graphs, greedy	2400	x418
847J	Students Initiation binary search, flows, graphs	2400	x430
717G	Underfail flows	2400	x443
808F	Card Game binary search, flows, graphs	2400	x477
1263F	Economic Difficulties data structures, dfs and similar, dp, flows, graphs, trees	2400	x542
164C	Machine Programming flows, graphs	2400	x598
277E	Binary Tree on Plane flows, trees	2400	x679
1082G	Petya and Graph flows, graphs	2400	x859
1139E	Maximize Mex flows, graph matchings, graphs	2400	x872
491C	Deciphering flows, graph matchings	2300	x237
1090E	Horseback Riding flows, graphs	2300	x306
78E	Evacuation flows, graphs, shortest paths	2300	x340
1252L	Road Construction flows, graphs	2300	x399
311E	Biologist flows	2300	x422
316C2	Tidying Up flows, graph matchings	2300	x455
362E	Petya and Pipes flows, graphs, shortest paths	2300	x503
877F	Ann and Books data structures, flows, hashing	2300	x613
510E	Fox And Dinner flows	2300	x1537
1184B2	The Doctor Meets Vader (Medium) flows, graph matchings, graphs, shortest paths, sortings	2200	x413
316C1	Tidying Up flows	2200	x440
863F	Almost Permutation flows	2200	x707
723E	One-Way Reform constructive algorithms, dfs and similar, flows, graphs, greedy	2200	x1301
653D	Delivery Bears binary search, flows, graphs	2200	x1523
1034B	Little C Loves 3 II brute force, constructive algorithms, flows, graph matchings	2200	x1637
852D	Exploration plan binary search, flows, graph matchings, shortest paths	2100	x558
269C	Flawed Flow constructive algorithms, flows, graphs, greedy	2100	x1305
498C	Array and Operations flows, graph matchings, number theory	2100	x2127
546E	Soldier and Traveling flows, graphs, math	2100	x2271
730I	Olympiad in Programming and Sports dp, flows, graphs, greedy	2000	x978
237E	Build String flows, graphs	2000	x1093
899E	Segments Removal data structures, dsu, flows, implementation, two pointers	2000	x1561
321B	Ciel and Duel dp, flows, greedy	1900	x1968
965D	Single-use Stones binary search, flows, greedy, two pointers	1900	x2138
1214D	Treasure Island dfs and similar, dp, flows, hashing	1900	x3620
727D	T-shirts Distribution constructive algorithms, flows, greedy	1800	x1345
1016D	Vasya And The Matrix constructive algorithms, flows, math	1800	x3371
1119B	Alyona and a Narrow Fridge binary search, flows, greedy, sortings	1300	x6799