Problemset - Codeforces

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Educational Codeforces Round 165 (Rated for Div. 2)
24:08:16
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Problems

#	Name
56E	Domino Principle binary search, data structures, sortings	2200	x2210
430A	Points and Segments (easy) constructive algorithms, sortings	1600	x2215
1741F	Multi-Colored Segments binary search, data structures, math, sortings	2000	x2217
237B	Young Table implementation, sortings	1500	x2219
1772F	Copy of a Copy of a Copy constructive algorithms, dfs and similar, graphs, implementation, sortings	2000	x2221
1821E	Rearrange Brackets brute force, dp, greedy, sortings, strings	2100	x2234
596C	Wilbur and Points combinatorics, greedy, sortings	1700	x2234
1476E	Pattern Matching bitmasks, data structures, dfs and similar, graphs, hashing, sortings, strings	2300	x2240
1924B	Space Harbour data structures, implementation, math, sortings	2100	x2256
1619G	Unusual Minesweeper binary search, dfs and similar, dsu, greedy, sortings	2000	x2259
1183G	Candy Box (hard version) greedy, implementation, sortings	2000	x2277
1371E2	Asterism (Hard Version) binary search, combinatorics, dp, math, number theory, sortings	2300	x2292
1061D	TV Shows data structures, greedy, implementation, sortings	2000	x2292
1196F	K-th Path brute force, constructive algorithms, shortest paths, sortings	2200	x2301
757C	Felicity is Coming! data structures, hashing, sortings, strings	1900	x2306
1056C	Pick Heroes greedy, implementation, interactive, sortings	1700	x2316
1641C	Anonymity Is Important binary search, brute force, data structures, dsu, greedy, sortings	2200	x2319
160D	Edges in MST dfs and similar, dsu, graphs, sortings	2300	x2350
1942D	Learning to Paint binary search, data structures, dfs and similar, dp, greedy, implementation, sortings	2100	x2362
141C	Queue constructive algorithms, greedy, sortings	1800	x2366
417D	Cunning Gena bitmasks, dp, greedy, sortings	1900	x2372
1612E	Messages brute force, dp, greedy, probabilities, sortings	2000	x2387
549G	Happy Line constructive algorithms, greedy, sortings	2200	x2392
433C	Ryouko's Memory Note implementation, math, sortings	1800	x2396
108B	Datatypes math, sortings	1400	x2410
115B	Lawnmower greedy, sortings	1500	x2421
432C	Prime Swaps greedy, sortings	1800	x2430
1187D	Subarray Sorting data structures, sortings	2400	x2448
1864E	Guess Game bitmasks, data structures, games, math, probabilities, sortings, strings, trees	2100	x2459
38E	Let's Go Rolling! dp, sortings	1800	x2481
1494D	Dogeforces constructive algorithms, data structures, dfs and similar, divide and conquer, dsu, greedy, sortings, trees	2300	x2489
853B	Jury Meeting greedy, sortings, two pointers	1800	x2503
1214E	Petya and Construction Set constructive algorithms, graphs, math, sortings, trees	2000	x2505
1223E	Paint the Tree dp, sortings, trees	2100	x2515
118C	Fancy Number brute force, greedy, sortings, strings	1900	x2516
571B	Minimization dp, greedy, sortings	2000	x2522
1154F	Shovels Shop dp, greedy, sortings	2100	x2537
272D	Dima and Two Sequences combinatorics, math, sortings	1600	x2582
1422D	Returning Home graphs, shortest paths, sortings	2300	x2586
1863E	Speedrun brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers	2100	x2600
22D	Segments greedy, sortings	1900	x2602
633C	Spy Syndrome 2 data structures, dp, hashing, implementation, sortings, string suffix structures, strings	1900	x2605
1253E	Antenna Coverage data structures, dp, greedy, sortings	2200	x2618
1862G	The Great Equalizer binary search, data structures, math, sortings	2000	x2634
1671E	Preorder combinatorics, divide and conquer, dp, dsu, hashing, sortings, trees	2100	x2640
613D	Kingdom and its Cities dfs and similar, divide and conquer, dp, graphs, sortings, trees	2800	x2647
154C	Double Profiles graphs, hashing, sortings	2300	x2666
1296F	Berland Beauty constructive algorithms, dfs and similar, greedy, sortings, trees	2100	x2668
1043E	Train Hard, Win Easy constructive algorithms, greedy, math, sortings	1900	x2684
1209E1	Rotate Columns (easy version) bitmasks, brute force, dp, greedy, sortings	2000	x2713
1271D	Portals data structures, dp, greedy, implementation, sortings	2100	x2746
1375E	Inversion SwapSort constructive algorithms, greedy, sortings	2500	x2764
1552F	Telepanting binary search, data structures, dp, sortings	2200	x2778
830B	Cards Sorting data structures, implementation, sortings	1600	x2788
1466F	Euclid's nightmare bitmasks, dfs and similar, dsu, graphs, greedy, math, sortings	2100	x2790
1630C	Paint the Middle dp, greedy, sortings, two pointers	2200	x2825
1899G	Unusual Entertainment data structures, dfs and similar, dsu, shortest paths, sortings, trees, two pointers	1900	x2891
99B	Help Chef Gerasim implementation, sortings	1300	x2894
1320C	World of Darkraft: Battle for Azathoth brute force, data structures, sortings	2000	x2895
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x2908
1284D	New Year and Conference binary search, data structures, hashing, sortings	2100	x2911
1472F	New Year's Puzzle brute force, dp, graph matchings, greedy, sortings	2100	x2932
863E	Turn Off The TV data structures, sortings	2000	x2944
246E	Blood Cousins Return binary search, data structures, dfs and similar, dp, sortings	2400	x2947
747D	Winter Is Coming dp, greedy, sortings	1800	x2950
1889C1	Doremy's Drying Plan (Easy Version) brute force, data structures, dp, greedy, sortings	2000	x2988
802M	April Fools' Problem (easy) greedy, sortings	1200	x3016
794C	Naming Company games, greedy, sortings	1800	x3026
1256F	Equalizing Two Strings constructive algorithms, sortings, strings	2000	x3050
388C	Fox and Card Game games, greedy, sortings	2000	x3077
652C	Foe Pairs combinatorics, sortings, two pointers	1800	x3083
474E	Pillars binary search, data structures, dp, sortings, trees	2000	x3095
1506F	Triangular Paths constructive algorithms, graphs, math, shortest paths, sortings	2000	x3097
492D	Vanya and Computer Game binary search, implementation, math, sortings	1800	x3115
437D	The Child and Zoo dsu, sortings	1900	x3133
1685B	Linguistics greedy, implementation, sortings, strings	2000	x3151
1503C	Travelling Salesman Problem binary search, data structures, dp, greedy, shortest paths, sortings, two pointers	2200	x3195
1801C	Music Festival binary search, data structures, dp, greedy, sortings	1900	x3203
576C	Points on Plane constructive algorithms, divide and conquer, geometry, greedy, sortings	2100	x3221
1690G	Count the Trains binary search, data structures, greedy, sortings	2000	x3222
1198C	Matching vs Independent Set constructive algorithms, graphs, greedy, sortings	2000	x3247
1932F	Feed Cats data structures, dp, sortings	1900	x3322
160C	Find Pair implementation, math, sortings	1700	x3380
1361B	Johnny and Grandmaster greedy, implementation, math, sortings	1900	x3384
1819B	The Butcher geometry, greedy, implementation, sortings, two pointers	1900	x3415
675C	Money Transfers constructive algorithms, data structures, greedy, sortings	2100	x3415
895B	XK Segments binary search, math, sortings, two pointers	1700	x3416
1316E	Team Building bitmasks, dp, greedy, sortings	2300	x3447
1945F	Kirill and Mushrooms data structures, sortings	1900	x3476
1687B	Railway System constructive algorithms, graphs, greedy, interactive, sortings	1700	x3477
384B	Multitasking greedy, implementation, sortings, two pointers	1500	x3479
1428E	Carrots for Rabbits binary search, data structures, greedy, math, sortings	2200	x3499
334B	Eight Point Sets sortings	1400	x3542
15A	Cottage Village implementation, sortings	1200	x3560
1919D	01 Tree constructive algorithms, data structures, dsu, greedy, sortings, trees	2100	x3577
1260D	A Game with Traps binary search, dp, greedy, sortings	1900	x3580
1333D	Challenges in school №41 brute force, constructive algorithms, games, graphs, greedy, implementation, sortings	2100	x3631
612D	The Union of k-Segments greedy, sortings	1800	x3667
159B	Matchmaker *special problem, greedy, sortings	1100	x3668
631C	Report data structures, sortings	1700	x3681