Problemset - Codeforces

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Problems

#	Name
1920F2	Smooth Sailing (Hard Version) binary search, data structures, dsu, geometry, graphs, trees	3000	x434
1763F	Edge Queries data structures, dfs and similar, dp, dsu, graphs, trees	3000	x442
1558E	Down Below binary search, dfs and similar, graphs, greedy, meet-in-the-middle, shortest paths	3000	x461
798E	Mike and code of a permutation constructive algorithms, data structures, graphs, sortings	3000	x469
235D	Graph Game graphs	3000	x496
1610F	Mashtali: a Space Oddysey constructive algorithms, dfs and similar, graphs	3000	x515
1534F2	Falling Sand (Hard Version) dfs and similar, dp, graphs, greedy	3000	x529
1889D	Game of Stacks brute force, dfs and similar, graphs, implementation, trees	3000	x547
1842H	Tenzing and Random Real Numbers bitmasks, dp, graphs, math, probabilities	3000	x622
1361E	James and the Chase dfs and similar, graphs, probabilities, trees	3000	x667
1149D	Abandoning Roads brute force, dp, graphs, greedy	3000	x719
1290D	Coffee Varieties (hard version) constructive algorithms, graphs, interactive	3000	x816
429E	Points and Segments graphs	3000	x839
1163F	Indecisive Taxi Fee data structures, graphs, shortest paths	3000	x840
1019C	Sergey's problem constructive algorithms, graphs	3000	x1096
464E	The Classic Problem data structures, graphs, shortest paths	3000	x1399
1090H	Linearization graphs	2900	x90
1201E1	Knightmare (easy) graphs, interactive, shortest paths	2900	x127
871E	Restore the Tree graphs, greedy, trees	2900	x148
331E1	Deja Vu constructive algorithms, graphs, implementation	2900	x164
980F	Cactus to Tree dp, graphs, trees	2900	x194
1510C	Cactus Not Enough dfs and similar, graph matchings, graphs	2900	x211
1056G	Take Metro brute force, data structures, graphs	2900	x247
1979F	Kostyanych's Theorem brute force, constructive algorithms, graphs, interactive	2900	x252
679D	Bear and Chase brute force, dfs and similar, graphs, implementation, math, probabilities	2900	x313
687E	TOF dfs and similar, graphs	2900	x316
1266F	Almost Same Distance dfs and similar, graphs	2900	x333
1494F	Delete The Edges brute force, constructive algorithms, dfs and similar, graphs, implementation	2900	x335
1654G	Snowy Mountain data structures, dfs and similar, graphs, greedy, shortest paths, trees	2900	x365
1792F2	Graph Coloring (hard version) brute force, combinatorics, divide and conquer, dp, fft, graphs	2900	x379
848D	Shake It! combinatorics, dp, flows, graphs	2900	x380
1916F	Group Division constructive algorithms, dfs and similar, graphs, greedy	2900	x439
704C	Black Widow dp, graphs, implementation, math	2900	x460
1835D	Doctor's Brown Hypothesis dfs and similar, graphs, math, number theory	2900	x468
763D	Timofey and a flat tree data structures, graphs, hashing, shortest paths, trees	2900	x529
167E	Wizards and Bets dfs and similar, graphs, math, matrices	2900	x556
1062F	Upgrading Cities dfs and similar, graphs	2900	x572
1616F	Tricolor Triangles brute force, graphs, math, matrices	2900	x588
343E	Pumping Stations brute force, dfs and similar, divide and conquer, flows, graphs, greedy, trees	2900	x702
938G	Shortest Path Queries bitmasks, data structures, dsu, graphs	2900	x875
1218A	BubbleReactor dp, graphs	2800	x124
290F	Greedy Petya *special problem, dfs and similar, graphs, greedy	2800	x130
869D	The Overdosing Ubiquity brute force, dfs and similar, graphs	2800	x240
1031F	Familiar Operations brute force, graphs, math	2800	x273
1578A	Anti-Tetris constructive algorithms, graphs, shortest paths	2800	x336
1904F	Beautiful Tree data structures, dfs and similar, graphs, implementation, trees	2800	x339
1578K	Kingdom of Islands brute force, graphs, implementation	2800	x348
240E	Road Repairs dfs and similar, graphs, greedy	2800	x355
762F	Tree nesting combinatorics, graphs, trees	2800	x367
850D	Tournament Construction constructive algorithms, dp, graphs, greedy, math	2800	x377
1721F	Matching Reduction brute force, constructive algorithms, dfs and similar, flows, graph matchings, graphs, interactive	2800	x385
1389G	Directing Edges dfs and similar, dp, graphs, trees	2800	x390
842E	Nikita and game binary search, dfs and similar, divide and conquer, graphs, trees	2800	x406
1155F	Delivery Oligopoly brute force, dp, graphs	2800	x408
776F	Sherlock's bet to Moriarty constructive algorithms, data structures, divide and conquer, geometry, graphs, implementation, trees	2800	x429
418D	Big Problems for Organizers data structures, graphs, trees	2800	x474
1419F	Rain of Fire binary search, data structures, dfs and similar, dsu, graphs, implementation	2800	x487
1572D	Bridge Club flows, graph matchings, graphs, greedy	2800	x488
819E	Mister B and Flight to the Moon constructive algorithms, graphs	2800	x507
1477D	Nezzar and Hidden Permutations constructive algorithms, dfs and similar, graphs	2800	x539
685E	Travelling Through the Snow Queen's Kingdom bitmasks, brute force, divide and conquer, graphs	2800	x540
1697F	Too Many Constraints 2-sat, constructive algorithms, graphs, implementation	2800	x547
51F	Caterpillar dfs and similar, dp, graphs, trees	2800	x553
1967D	Long Way to be Non-decreasing binary search, dfs and similar, graphs, implementation, shortest paths, two pointers	2800	x566
1625E2	Cats on the Upgrade (hard version) binary search, data structures, dfs and similar, graphs, trees	2800	x586
1863G	Swaps combinatorics, dp, graphs, math	2800	x590
1033E	Hidden Bipartite Graph binary search, constructive algorithms, dfs and similar, graphs, interactive	2800	x592
1545C	AquaMoon and Permutations 2-sat, brute force, combinatorics, constructive algorithms, graph matchings, graphs	2800	x597
1698F	Equal Reversal constructive algorithms, graphs, implementation, math	2800	x608
913F	Strongly Connected Tournament dp, graphs, math, probabilities	2800	x634
1291F	Coffee Varieties (easy version) graphs, interactive	2800	x652
1383D	Rearrange brute force, constructive algorithms, graphs, greedy, sortings	2800	x674
360E	Levko and Game graphs, greedy, shortest paths	2800	x686
1491G	Switch and Flip constructive algorithms, graphs, math	2800	x755
600F	Edge coloring of bipartite graph graphs	2800	x761
325E	The Red Button combinatorics, dfs and similar, dsu, graphs, greedy	2800	x765
1672F2	Checker for Array Shuffling constructive algorithms, dfs and similar, graphs	2800	x789
830D	Singer House combinatorics, dp, graphs, trees	2800	x816
757F	Team Rocket Rises Again data structures, graphs, shortest paths	2800	x1138
1404E	Bricks flows, graph matchings, graphs	2800	x1186
280D	k-Maximum Subsequence Sum data structures, flows, graphs, implementation	2800	x1248
1375G	Tree Modification brute force, constructive algorithms, dfs and similar, graph matchings, graphs, trees	2800	x1872
555E	Case of Computer Network dfs and similar, graphs, trees	2800	x2313
613D	Kingdom and its Cities dfs and similar, divide and conquer, dp, graphs, sortings, trees	2800	x2811
44F	BerPaint geometry, graphs	2700	x66
1599I	Desert data structures, graphs	2700	x114
1156G	Optimizer graphs, greedy, hashing, implementation	2700	x127
982F	The Meeting Place Cannot Be Changed dfs and similar, graphs	2700	x189
42E	Baldman and the military dfs and similar, graphs, trees	2700	x198
1682F	MCMF? data structures, flows, graphs, greedy, sortings, two pointers	2700	x303
812D	Sagheer and Kindergarten dfs and similar, graphs, implementation, trees	2700	x329
81E	Pairs dfs and similar, dp, dsu, graphs, implementation, trees	2700	x331
191D	Metro Scheme graphs, greedy	2700	x349
1543E	The Final Pursuit bitmasks, constructive algorithms, divide and conquer, graphs, greedy, math	2700	x397
901D	Weighting a Tree constructive algorithms, dfs and similar, graphs	2700	x438
1695E	Ambiguous Dominoes constructive algorithms, dfs and similar, graphs	2700	x440
868E	Policeman and a Tree dp, graphs, trees	2700	x484
903G	Yet Another Maxflow Problem data structures, flows, graphs	2700	x520
132E	Bits of merry old England flows, graphs	2700	x531
933C	A Colourful Prospect geometry, graphs	2700	x557