Problemset - Codeforces

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Codeforces Round (Div. 2)
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Problems

#	Name
1793F	Rebrending brute force, data structures, divide and conquer, implementation	2600	x1703
1793E	Velepin and Marketing binary search, data structures, dp, greedy, sortings, two pointers	2600	x1395
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x7307
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x37148
1793B	Fedya and Array constructive algorithms, math	1100	x17345
1793A	Yet Another Promotion greedy, math	800	x18942
1792F2	Graph Coloring (hard version) brute force, combinatorics, divide and conquer, dp, fft, graphs	2900	x580
1792F1	Graph Coloring (easy version) combinatorics, dp, graphs	2700	x1062
1792E	Divisors and Table brute force, dfs and similar, dp, number theory	2400	x1650
1792D	Fixed Prefix Permutations binary search, bitmasks, data structures, hashing, math, sortings	1700	x8545
1792C	Min Max Sort binary search, brute force, greedy, math, two pointers	1500	x17314
1792B	Stand-up Comedian greedy, math	1200	x24690
1792A	GamingForces greedy, sortings	800	x31683
1791G2	Teleporters (Hard Version) binary search, greedy, sortings	1900	x6296
1791G1	Teleporters (Easy Version) greedy, sortings	1100	x37392
1791F	Range Update Point Query binary search, brute force, data structures	1500	x16236
1791E	Negatives and Positives dp, greedy, sortings	1100	x45199
1791D	Distinct Split brute force, greedy, strings	1000	x55439
1791C	Prepend and Append implementation, two pointers	800	x83562
1791B	Following Directions geometry, implementation	800	x54274
1791A	Codeforces Checking implementation, strings	800	x85811
1790G	Tokens on Graph constructive algorithms, dfs and similar, graphs, shortest paths	2300	x1363
1790F	Timofey and Black-White Tree brute force, dfs and similar, divide and conquer, graphs, greedy, math, shortest paths, trees	2100	x4263
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x17818
1790D	Matryoshkas data structures, greedy, sortings	1200	x35259
1790C	Premutation brute force, implementation, math	1000	x27364
1790B	Taisia and Dice greedy, greedy, math	800	x29339
1790A	Polycarp and the Day of Pi implementation, math, strings	800	x41763
1789F	Serval and Brain Power bitmasks, brute force, dp, greedy, implementation, strings	2700	x1047
1789E	Serval and Music Game brute force, dp, implementation, math, number theory	2500	x1017
1789D	Serval and Shift-Shift-Shift bitmasks, brute force, constructive algorithms, implementation	2200	x1981
1789C	Serval and Toxel's Arrays combinatorics, dp, implementation, math	1500	x10154
1789B	Serval and Inversion Magic brute force, implementation, strings, two pointers	800	x17791
1789A	Serval and Mocha's Array brute force, math, number theory	800	x38447
1788F	XOR, Tree, and Queries bitmasks, constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, trees	2500	x1272
1788E	Sum Over Zero data structures, dfs and similar, dp	2200	x3565
1788D	Moving Dots binary search, brute force, combinatorics, math, two pointers	2000	x4853
1788C	Matching Numbers constructive algorithms, greedy, math	1300	x19811
1788B	Sum of Two Numbers constructive algorithms, greedy, implementation, math, probabilities	1100	x22843
1788A	One and Two brute force, implementation, math	800	x60551
1787I	Treasure Hunt data structures, divide and conquer, two pointers	3400	x466
1787H	Codeforces Scoreboard binary search, data structures, dp, geometry	3300	x357
1787G	Colorful Tree Again brute force, data structures, trees	3000	x649
1787F	Inverse Transformation constructive algorithms, implementation, math	2500	x859
1787E	The Harmonization of XOR bitmasks, constructive algorithms, greedy, math	2100	x2832
1787D	Game on Axis combinatorics, dfs and similar, dsu, graphs, implementation	1900	x3893
1787C	Remove the Bracket dp, greedy, math	1600	x8552
1787B	Number Factorization greedy, math, number theory	1100	x15287
1787A	Exponential Equation constructive algorithms, math	800	x20701
1786B	Cake Assembly Line brute force, sortings	1300	x9937
1786A2	Alternating Deck (hard version) implementation	800	x12280
1786A1	Non-alternating Deck (easy version) implementation	800	x14890
1784F	Minimums or Medians	3400	x409
1784E	Infinite Game brute force, combinatorics, dp, games, probabilities	3100	x540
1784D	Wooden Spoon combinatorics, dp	2400	x1442
1784C	Monsters (hard version) data structures, greedy	2200	x2025
1784B	Letter Exchange constructive algorithms	1900	x3716
1784A	Monsters (easy version) brute force, greedy	1000	x17479
1783G	Weighed Tree Radius data structures, divide and conquer, implementation, trees	2800	x655
1783F	Double Sort II dfs and similar, flows, graph matchings, graphs	2500	x1502
1783E	Game of the Year brute force, data structures, math, number theory	2300	x2575
1783D	Different Arrays brute force, dp, implementation	2000	x5458
1783C	Yet Another Tournament binary search, greedy, sortings	1700	x11182
1783B	Matrix of Differences constructive algorithms, math	1100	x19587
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x55507
1781H2	Window Signals (hard version)	3500	x140
1781H1	Window Signals (easy version)	3200	x440
1781G	Diverse Coloring constructive algorithms, trees	3200	x323
1781F	Bracket Insertion combinatorics, dp, math, trees	2700	x1410
1781E	Rectangle Shrinking binary search, brute force, data structures, greedy, implementation, two pointers	2300	x1490
1781D	Many Perfect Squares brute force, math, number theory	1800	x6433
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x11403
1781B	Going to the Cinema brute force, greedy, sortings	1000	x15109
1781A	Parallel Projection geometry, math	800	x16176
1780G	Delicious Dessert binary search, dsu, hashing, math, number theory, string suffix structures	2400	x1109
1780F	Three Chairs bitmasks, brute force, combinatorics, data structures, dp, number theory, sortings	2300	x2025
1780E	Josuke and Complete Graph binary search, brute force, data structures, math, number theory	2400	x1998
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x5989
1780B	GCD Partition brute force, greedy, math, number theory	1100	x28482
1780A	Hayato and School constructive algorithms, greedy	800	x22847
1779H	Olympic Team Building brute force, meet-in-the-middle	3500	x176
1779G	The Game of the Century constructive algorithms, graphs, shortest paths	3000	x468
1779F	Xorcerer's Stones bitmasks, constructive algorithms, dp, trees	2500	x1485
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x2128
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x9224
1779C	Least Prefix Sum data structures, greedy	1600	x15025
1779B	MKnez's ConstructiveForces Task constructive algorithms, math	900	x25297
1779A	Hall of Fame constructive algorithms, greedy, strings	800	x24184
1778F	Maximizing Root dfs and similar, dp, graphs, math, number theory, trees	2600	x995
1778E	The Tree Has Fallen! bitmasks, dfs and similar, math, trees	2500	x1216
1778D	Flexible String Revisit combinatorics, dp, math, probabilities	2100	x3666
1778C	Flexible String bitmasks, brute force, strings	1600	x12000
1778B	The Forbidden Permutation greedy, math	1300	x14688
1778A	Flip Flop Sum greedy, implementation	800	x25979
1777F	Comfortably Numb bitmasks, data structures, divide and conquer, strings, trees	2400	x1540
1777E	Edge Reverse binary search, dfs and similar, graphs, trees	2200	x2526
1777D	Score of a Tree bitmasks, combinatorics, dfs and similar, dp, math, probabilities, trees	1900	x5058
1777C	Quiz Master binary search, math, number theory, sortings, two pointers	1700	x13395
1777B	Emordnilap combinatorics, greedy, math	900	x19596
1777A	Everybody Likes Good Arrays! greedy, math	800	x50413

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