Problemset - Codeforces

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Codeforces Round (Div. 3)
35:41:26
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Problems

#	Name
1778E	The Tree Has Fallen! bitmasks, dfs and similar, math, trees	2500	x815
1778D	Flexible String Revisit combinatorics, dp, math, probabilities	2100	x2537
1778C	Flexible String bitmasks, brute force, strings	1600	x7633
1778B	The Forbidden Permutation greedy, math	1300	x12887
1778A	Flip Flop Sum greedy, implementation	800	x23744
1777F	Comfortably Numb bitmasks, data structures, divide and conquer, strings, trees	2400	x814
1777E	Edge Reverse binary search, dfs and similar, graphs, trees	2200	x1686
1777D	Score of a Tree bitmasks, combinatorics, dfs and similar, dp, math, probabilities, trees	1900	x3206
1777C	Quiz Master binary search, math, number theory, sortings, two pointers	1700	x7690
1777B	Emordnilap combinatorics, greedy, math	900	x16560
1777A	Everybody Likes Good Arrays! greedy, math	800	x21118
1776N	Count Permutations math	3500	x64
1776M	Parmigiana With Seafood binary search, dp, greedy, trees	3000	x343
1776L	Controllers binary search, math	1500	x5156
1776K	Uniform Chemistry dp, math	3200	x64
1776J	Italian Data Centers graphs, shortest paths	2500	x608
1776I	Spinach Pizza games, geometry, greedy, interactive	2500	x638
1776H	Beppa and SwerChat two pointers	1300	x5995
1776G	Another Wine Tasting Event combinatorics, constructive algorithms, math, strings	2100	x1949
1776F	Train Splitting constructive algorithms, graphs, greedy	1700	x3219
1776E	Crossing the Railways data structures, dp	3500	x62
1776D	Teamwork constructive algorithms, greedy, math	2800	x338
1776C	Library game games, greedy, interactive, sortings	2500	x755
1776B	Vittorio Plays with LEGO Bricks dp, geometry	2200	x1242
1776A	Walking Boy greedy	800	x6760
1775F	Laboratory on Pluto constructive algorithms, dp, greedy, math	2500	x739
1775E	The Human Equation greedy, implementation	2100	x3022
1775D	Friendly Spiders dfs and similar, graphs, math, number theory, shortest paths	1800	x5744
1775C	Interesting Sequence bitmasks, math	1600	x9612
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x12491
1775A2	Gardener and the Capybaras (hard version) constructive algorithms, greedy	900	x18256
1775A1	Gardener and the Capybaras (easy version) brute force, constructive algorithms, implementation	800	x19297
1774H	Maximum Permutation constructive algorithms	3500	x129
1774G	Segment Covering brute force, combinatorics, constructive algorithms, data structures, dp, trees	3200	x364
1774F2	Magician and Pigs (Hard Version) binary search, brute force, data structures, implementation	2700	x637
1774F1	Magician and Pigs (Easy Version) brute force, data structures, implementation	2400	x1018
1774E	Two Chess Pieces dfs and similar, dp, greedy, trees	1900	x3306
1774D	Same Count One brute force, constructive algorithms, greedy, implementation, two pointers	1600	x7398
1774C	Ice and Fire constructive algorithms, dp, greedy	1300	x11535
1774B	Coloring constructive algorithms, greedy, math	1500	x11533
1774A	Add Plus Minus Sign constructive algorithms, math	800	x21921
1773L	Lisa's Sequences dp	3500	x28
1773K	King's Puzzle constructive algorithms	1900	x1378
1773J	Jumbled Trees constructive algorithms, math	2900	x98
1773I	Interactive Factorial Guessing brute force, games, implementation, interactive	2500	x453
1773H	Hot and Cold binary search, interactive	2600	x336
1773G	Game of Questions bitmasks, combinatorics, dp, fft, math, probabilities	2800	x319
1773F	Football constructive algorithms	800	x3944
1773E	Easy Assembly greedy, sortings	1400	x4636
1773D	Dominoes combinatorics, flows, graph matchings, greedy	2600	x418
1773C	Cactus Meets Torus	3500	x28
1773B	BinCoin binary search, divide and conquer, hashing, implementation, probabilities, trees	2200	x729
1773A	Amazing Trick constructive algorithms, graph matchings, math, probabilities	1900	x1479
1772G	Gaining Rating binary search, greedy, implementation, math, sortings, two pointers	2200	x1264
1772F	Copy of a Copy of a Copy constructive algorithms, dfs and similar, graphs, implementation, sortings	2000	x2225
1772E	Permutation Game games	1700	x6373
1772D	Absolute Sorting constructive algorithms, math	1400	x14868
1772C	Different Differences constructive algorithms, greedy, math	1000	x22637
1772B	Matrix Rotation brute force, implementation	800	x28141
1772A	A+B? implementation	800	x43823
1771F	Hossam and Range Minimum Query binary search, bitmasks, data structures, hashing, probabilities, strings, trees	2500	x960
1771E	Hossam and a Letter brute force, dp, implementation, two pointers	2500	x657
1771D	Hossam and (sub-)palindromic tree brute force, data structures, dfs and similar, dp, strings, trees	2100	x2593
1771C	Hossam and Trainees greedy, math, number theory	1600	x8970
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x12778
1771A	Hossam and Combinatorics combinatorics, math, sortings	900	x22004
1770H	Koxia, Mahiru and Winter Festival constructive algorithms	3500	x89
1770G	Koxia and Bracket divide and conquer, fft, math	3400	x150
1770F	Koxia and Sequence bitmasks, combinatorics, dp, math, number theory	3100	x606
1770E	Koxia and Tree combinatorics, dfs and similar, dp, dsu, math, probabilities, trees	2400	x1292
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x3659
1770C	Koxia and Number Theory brute force, chinese remainder theorem, math, number theory	1700	x8250
1770B	Koxia and Permutation constructive algorithms	1000	x18995
1770A	Koxia and Whiteboards brute force, greedy	1000	x22830
1769D3	Игра в Девятку III *special problem, brute force	2300	x115
1769D2	Игра в Девятку II *special problem, brute force	2200	x186
1769D1	Игра в Девятку I *special problem, brute force, dp	1800	x367
1769C2	Подкрутка II *special problem, dp	1300	x911
1769C1	Подкрутка I *special problem, brute force, dp, greedy	1200	x928
1769B2	Копирование файлов II *special problem, binary search, brute force, math	1400	x853
1769B1	Копирование файлов I *special problem, brute force, implementation, math	1000	x1309
1769A	Узкая дорога *special problem, math	800	x1895
1768F	Wonderful Jump dp, greedy	2900	x781
1768E	Partial Sorting combinatorics, math, number theory	2300	x1772
1768D	Lucky Permutation constructive algorithms, dfs and similar, graphs, greedy	1800	x6678
1768C	Elemental Decompress constructive algorithms, greedy, implementation, sortings	1300	x13532
1768B	Quick Sort greedy, math	900	x21984
1768A	Greatest Convex greedy, math, number theory	800	x27944
1767F	Two Subtrees data structures, trees	3100	x245
1767E	Algebra Flash bitmasks, brute force, dp, graphs, math, meet-in-the-middle, trees	2500	x830
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x9387
1767C	Count Binary Strings data structures, dp	2100	x2496
1767B	Block Towers data structures, greedy, sortings	800	x19556
1767A	Cut the Triangle implementation	800	x20123
1766F	MCF flows	2800	x256
1766E	Decomposition binary search, brute force, data structures, divide and conquer, dp, two pointers	2300	x1124
1766D	Lucky Chains math, number theory	1600	x8334
1766C	Hamiltonian Wall dp, implementation	1300	x13058
1766B	Notepad# implementation	1000	x20056
1766A	Extremely Round brute force, implementation	800	x23813