Problemset - Codeforces

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Codeforces Round 974 (Div. 3)
20:58:20
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Problems

#	Name
1801G	A task for substrings data structures, string suffix structures, strings	3400	x370
1801F	Another n-dimensional chocolate bar dp, math, meet-in-the-middle, number theory	2700	x580
1801E	Gasoline prices data structures, divide and conquer, dsu, hashing, trees	3000	x449
1801D	The way home binary search, data structures, dp, graphs, greedy, shortest paths, sortings	2100	x2197
1801C	Music Festival binary search, data structures, dp, greedy, sortings	1900	x3412
1801B	Buying gifts data structures, greedy, sortings	1800	x6198
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x8528
1800G	Symmetree dfs and similar, hashing, implementation, trees	2200	x2050
1800F	Dasha and Nightmares bitmasks, hashing, meet-in-the-middle, strings	1900	x3874
1799H	Tree Cutting bitmasks, dfs and similar, dp	3200	x279
1799G	Count Voting combinatorics, dp, math	2600	x759
1799F	Halve or Subtract binary search, brute force, dp, greedy, sortings	2700	x817
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x1193
1799D2	Hot Start Up (hard version) data structures, dp	2100	x2437
1799D1	Hot Start Up (easy version) dp	1900	x4442
1799C	Double Lexicographically Minimum greedy, strings	1700	x5786
1798F	Gifts from Grandfather Ahmed dp, math, number theory	2500	x491
1798E	Multitest Generator brute force, dp	2300	x1588
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x9775
1798C	Candy Store greedy, math, number theory	1700	x8150
1797F	Li Hua and Path data structures, dfs and similar, divide and conquer, dsu, trees	3000	x351
1797E	Li Hua and Array brute force, data structures, dsu, math, number theory, two pointers	2300	x1265
1797D	Li Hua and Tree brute force, data structures, dfs and similar, dp, implementation, trees	1900	x3930
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x7591
1796F	Strange Triples brute force, math, number theory	2900	x171
1796E	Colored Subgraphs dfs and similar, dp, games, greedy, trees	2500	x749
1796D	Maximum Subarray data structures, dp, greedy, two pointers	2000	x4282
1796C	Maximum Set binary search, math	1600	x10358
1795G	Removal Sequences bitmasks, dfs and similar, graphs	2700	x681
1795F	Blocking Chips binary search, constructive algorithms, dfs and similar, greedy, trees	2400	x1104
1795E	Explosions? binary search, data structures, dp, greedy, math	2200	x2005
1795D	Triangle Coloring combinatorics, math	1600	x9075
1794E	Labeling the Tree with Distances data structures, dp, greedy, hashing, implementation, trees	2400	x1085
1794D	Counting Factorizations combinatorics, divide and conquer, dp, math, number theory	1900	x3568
1793F	Rebrending brute force, data structures, divide and conquer, implementation	2600	x1366
1793E	Velepin and Marketing binary search, data structures, dp, greedy, sortings, two pointers	2600	x1051
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x6080
1792F2	Graph Coloring (hard version) brute force, combinatorics, divide and conquer, dp, fft, graphs	2900	x389
1792F1	Graph Coloring (easy version) combinatorics, dp, graphs	2700	x712
1792E	Divisors and Table brute force, dfs and similar, dp, number theory	2400	x1382
1792D	Fixed Prefix Permutations binary search, bitmasks, data structures, hashing, math, sortings	1700	x6234
1791G2	Teleporters (Hard Version) binary search, greedy, sortings	1900	x4764
1790G	Tokens on Graph constructive algorithms, dfs and similar, graphs, shortest paths	2300	x1119
1790F	Timofey and Black-White Tree brute force, dfs and similar, divide and conquer, graphs, greedy, math, shortest paths, trees	2100	x3329
1789F	Serval and Brain Power bitmasks, brute force, dp, greedy, implementation, strings	2700	x713
1789E	Serval and Music Game brute force, dp, implementation, math, number theory	2500	x815
1789D	Serval and Shift-Shift-Shift bitmasks, brute force, constructive algorithms, implementation	2200	x1664
1788F	XOR, Tree, and Queries bitmasks, constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, trees	2500	x833
1788E	Sum Over Zero data structures, dfs and similar, dp	2200	x2657
1788D	Moving Dots binary search, brute force, combinatorics, math, two pointers	2000	x3897
1787I	Treasure Hunt data structures, divide and conquer, two pointers	3400	x166
1787H	Codeforces Scoreboard binary search, data structures, dp, geometry	3300	x229
1787G	Colorful Tree Again brute force, data structures, trees	3000	x433
1787F	Inverse Transformation constructive algorithms, implementation, math	2500	x675
1787E	The Harmonization of XOR bitmasks, constructive algorithms, greedy, math	2100	x2329
1787D	Game on Axis combinatorics, dfs and similar, dsu, graphs, implementation	1900	x3384
1787C	Remove the Bracket dp, greedy, math	1600	x7042
1784F	Minimums or Medians	3400	x184
1784E	Infinite Game brute force, combinatorics, dp, games, probabilities	3100	x334
1784D	Wooden Spoon combinatorics, dp	2400	x1016
1784C	Monsters (hard version) data structures, greedy	2200	x1650
1784B	Letter Exchange constructive algorithms	1900	x3322
1783G	Weighed Tree Radius data structures, divide and conquer, implementation, trees	2800	x478
1783F	Double Sort II dfs and similar, flows, graph matchings, graphs	2500	x1011
1783E	Game of the Year brute force, data structures, math, number theory	2300	x2093
1783D	Different Arrays brute force, dp, implementation	2000	x4400
1783C	Yet Another Tournament binary search, greedy, sortings	1700	x9265
1781H2	Window Signals (hard version)	3500	x91
1781H1	Window Signals (easy version)	3200	x116
1781G	Diverse Coloring constructive algorithms, trees	3200	x222
1781F	Bracket Insertion combinatorics, dp, math, trees	2700	x849
1781E	Rectangle Shrinking binary search, brute force, data structures, greedy, implementation, two pointers	2300	x1301
1781D	Many Perfect Squares brute force, math, number theory	1800	x5473
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x7556
1780G	Delicious Dessert binary search, dsu, hashing, math, number theory, string suffix structures	2400	x712
1780F	Three Chairs bitmasks, brute force, combinatorics, data structures, dp, number theory, sortings	2300	x1468
1780E	Josuke and Complete Graph binary search, brute force, data structures, math, number theory	2400	x1410
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x4909
1779H	Olympic Team Building brute force, meet-in-the-middle	3500	x142
1779G	The Game of the Century constructive algorithms, graphs, shortest paths	3000	x311
1779F	Xorcerer's Stones bitmasks, constructive algorithms, dp, trees	2500	x1258
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x1752
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x7873
1779C	Least Prefix Sum data structures, greedy	1600	x12340
1778F	Maximizing Root dfs and similar, dp, graphs, math, number theory, trees	2600	x649
1778E	The Tree Has Fallen! bitmasks, dfs and similar, math, trees	2500	x870
1778D	Flexible String Revisit combinatorics, dp, math, probabilities	2100	x2737
1778C	Flexible String bitmasks, brute force, strings	1600	x8170
1777F	Comfortably Numb bitmasks, data structures, divide and conquer, strings, trees	2400	x932
1777E	Edge Reverse binary search, dfs and similar, graphs, trees	2200	x1812
1777D	Score of a Tree bitmasks, combinatorics, dfs and similar, dp, math, probabilities, trees	1900	x3458
1777C	Quiz Master binary search, math, number theory, sortings, two pointers	1700	x8467
1776N	Count Permutations math	3500	x82
1776M	Parmigiana With Seafood binary search, dp, greedy, trees	3000	x370
1776K	Uniform Chemistry dp, math	3200	x68
1776J	Italian Data Centers graphs, shortest paths	2500	x650
1776I	Spinach Pizza games, geometry, greedy, interactive	2500	x671
1776G	Another Wine Tasting Event combinatorics, constructive algorithms, math, strings	2100	x2038
1776F	Train Splitting constructive algorithms, graphs, greedy	1700	x3423
1776E	Crossing the Railways data structures, dp	3500	x69